Ningbo Hewcho Industrial Limited

METAL STAMPING PARTS(2022年)

hewcho — 2022-03-24T10:32:52+0900

http://www.hewcho.com/product/metal-stamping-parts/

As China metal stamping suppliers china sheet metal stamping parts, our core competence is the production of customized metal stamping parts with a comprehensive quality management in all manufacturing steps. From simple blanks and bending parts to complex assemblies, all products from prototypes to large-scale production are realized according to your specified quality requirements on time. In the process, mainly sheet metal such as aluminum, steel or stainless steel up to 12 mm material thickness are processed. Also, precision sheet metal parts with individual details or coatings are no problem.
Featured CNC Machining Parts
Metal Sheet Stamping Brackets
Metal Stamping Brackets are technical products made from flat and metallic strips or coils on behalf of customers. As a material are usually cold or hot rolled sheets up to 8 mm thickness are used...Metal Sheet Stamping Brackets
Metal Stamping Welding Parts
Metal Stamping Welded Parts are products made of thin sheet metal and are usually manufactured as assemblies or constructions according to customer requirements. The construction materials...Metal Stamping Welding Parts
Precision Metal Stamping Parts
Stamped parts are products made of plate-shaped materials with arbitrary shapes and contours. Especially in the field of sheet metal processing , the production of...Precision Metal Stamping Parts
Sheet Metal Stamped Components
Sheet metal stampings are products made of thin sheets such as aluminum, steel or stainless steel and are usually produced in large quantities. The production is economical and...Sheet Metal Stamped Components
Sheet Metal Stamping Housing
Sheet metal stamping housings are claddings or claddings made of thin sheets such as aluminum, stainless steel or brass with a variety of applications. The machining...Sheet Metal Stamping Housing
What's is metal stamping parts china in China?
Precision metal stamping china parts are dimensionally accurate components and are manufactured according to customer-specific quality requirements. Here must the quality of the finished product with respect to match the customer requirements of Functioning, current regulations to protect health and the environment and ensure timely delivery. Precision sheet metal stamping parts have become important functional components for the automotive industry, mechanical engineering or electrical engineering.
How is the stamping process done?
Whether laser cutting , punching , edging or welding - we are certified according to DIN EN ISO 9001: 2008 and have their own measuring rooms with state-of-the-art measuring technology. On request, we can provide you with quality management for your precision sheet metal parts, with targets of your choice and guaranteed attainable dimensional accuracies of ± 0.1 mm .

As a metal stamping suppliers in China, we provide metal stamping parts china for sale.

Ningbo Hewcho Industrial is a hydraulic cylinder piston rod manufacturer, we provide cnc machining china, carbon steel components, cnc turned components, cnc machined components and etc. Contact us to know more.

Metal Sheet Stamping Brackets(2022年)

hewcho — 2022-03-24T10:32:28+0900

http://www.hewcho.com/product/metal-sheet-stamping-brackets.html

Basic Info.
Trade Term: EXW,FOB,CIF.CFR
Payment Term: T/T,L/C, Western Union
Delivery Time:7-30days
Place of Origin: Ningbo, China
Metal Sheet Stamping BracketsMetal Sheet Stamping BracketsMetal Sheet Stamping Brackets
Information About HEWCHO Metal Sheet Stamping Brackets
Features of custom metal brackets:
·Product name: Metal Stamping Brackets
·Material: Carbon Steel, Brass, Copper, Stainless Steel, Alumnum, Titanium Alloy
·Machining Tolerances:0.1mm
·Machining Process: Punching, edging, pressing and welding
·Min. Order:1000PCS
·Surface Treatment: Polishing, Heat Treatment, Sand Blasting, Zinc Plated, Anodization, Chemical Fim,
·Packing: Carton Box, Blister tray, Pallet, Wooden Case.
·Certificate:ISO9001:2008, ISO/TS16949

The stamped bracket is one of the most popular products in our company.

Description of stamped bracket
Metal Stamping Brackets are technical products made from flat and metallic strips or coils on behalf of customers. As a material are usually cold or hot rolled sheets up to 8 mm thickness are used, which are optimally suitable for forming. The production takes place on automated machining centers by, punching , edging , pressing and welding. Typical application examples for stamping bracket are machinery bracket, holding plates, vehicle parts and many more.

Whatever the requirement, as a bracket manufacturer, Ningbo Hewcho offers you the whole variety of sheet metal working and supply industrial customers with a wide range of technical sheet metal parts. You will receive optimum manufacturing solutions for single-stage machining processes, prototype production and even mass production of even complex sheet metal parts. An extensive stock of common standard sheets made of steel, stainless steel and aluminum as well as sound logistics concepts guarantee on- time delivery of your sheet metal parts.

Ningbo Hewcho specialize in all the requirements and factors that are required of modern and flexible sheet metal processing today. High-quality components or assemblies are produced according to customer requirements with quality and the most modern production technology from sheet metal. Depending on the order, CNC-controlled lasers, punching, pressing or folding machines are used. The individual components are usually connected by MIG / MAG / TIG welding, spot and stud welding or with rivet and screw connections.

Ningbo Hewcho Industrial is a hydraulic cylinder piston rod manufacturer, we provide hydraulic cylinder rod, carbon steel components, cnc turned components, cnc machined components and etc. Contact us to know more.

Hydraulic Cylinder Piston Rod(2022年)

hewcho — 2022-03-24T10:32:04+0900

http://www.hewcho.com/product/hydraulic-cylinder-piston-rod.html

Basic Info.
Trade Term: EXW,FOB,CIF.CFR
Payment Term: T/T,L/C, Western Union
Delivery Time:7-30days
Place of Origin: Ningbo, China

Features of hydraulic cylinder piston rod:
·Product name: Hydraulic Cylinder Piston Rod
·Material: Stainless Steel, Alloy Steel
·Machining Tolerances:0.01mm
·Machining Process:
CNC Turning, Grinding, Threading
·Min. Order:500PCS
·Surface Treatment: Polishing, Heat Treatment, Chroming, TD coating
·Packing: Carton Box, Blister tray, Pallet, Wooden Case.
·Certificate:ISO9001:2008, ISO/TS16949

Description of hydraulic cylinder rod
The hydraulic piston rod is a connecting part that supports the piston to do work. Most of the piston rods are used in the cylinder and cylinder movement execution parts. It is a moving part with frequent movement and high technical requirements. Taking hydraulic piston rod cylinder as an example, it consists of: cylinder, piston rod (cylinder rod), piston and end cap.

The quality of its processing and material directly affects the life and reliability of the entire product. Our piston rod made from certified raw material with latest technology. The surface roughness reach to Ra0.2-0.4μm. Have good coaxiality and wear resistance.

Feature of hydraulic rod
(1) Must have sufficient strength, stiffness and stability;
(2) Good wear resistance and high machining accuracy and surface roughness requirements;
(3) Minimize the influence of stress concentration on the structure;
(4) Ensure reliable connection and prevent loosening;
(5) The design of the piston rod structure is to facilitate disassembly and assembly of the piston.

Application of hydraulic cylinder spare parts
Piston rods are mainly used for hydraulic pneumatic, construction machinery, piston rods for automobile manufacturing, guide columns for plastic machinery, roller shafts for packaging machinery, printing machinery, textile machinery, shafts for conveying machinery, linear optical axes for linear motion.

Material of cylinder rod:
Stainless Steel 304;D2;Cr12Mov;SAE 1045 ;DIN CK45 ;JIS S45C;EN8;EN8D;Cm45.

Ningbo Hewcho Industrial is a hydraulic cylinder piston rod manufacturer, we provide hydraulic cylinder rod, carbon steel components, cnc turned components, china cnc precision machining and etc. Contact us to know more.

Hydraulic Brake Hose Fittings(2022年)

hewcho — 2022-03-24T10:31:26+0900

http://www.hewcho.com/product/hydraulic-brake-hose-fittings.html

Basic Info.
Trade Term: EXW,FOB,CIF.CFR
Payment Term: T/T,L/C, Western Union
Delivery Time:7-30days
Place of Origin: Ningbo, China

Features of brake hose fittings:
·Product name: Hydraulic Brake Hose Fittings
·Material:Carbon Steel
·Machining Tolerances:0.05mm
·Machining Process:
Cold Forging, Riveting, CNC Turning, CNC Milling, Welding, Threading, Tapping, Bending, Drilling
·Min. Order:1000PCS
·Surface Treatment: Zinc Plated(White, Green, Yellow, Black), Zinc-Nickel Alloy Plated
·Packing: Carton Box, Blister tray, Pallet, Wooden Case.
·Certificate:ISO9001:2008, ISO/TS16949, DOT

Description of Hydraulic Brake Fittings
Hydraulic brake hose fittings is a coupling, other than a clamp, design for attachment to the end of brake hose.They are mainly used in brake systems to provide connections、seals、and oil transporting to the brake system or to the other system. Making the brake system’s oil circuit unform and unobstructed, and maintaining durability under high pressure. The sensitivity, effciency and smoothness of the brake increase the braking performance of the car.

With over 500 fittings, Ningbo Hewcho can manufacture virally any brake, clutch ,1/8” or 3/16” hydraulic brake hose assembly. All brake hose fittings are build to SAE J1401 and DOT compliance standards.

You can generally disthnguish whether you have a metric or imperial threaded brake fittings from the year and origin of your vehicle.
●European-Metric(99%)
●Asian-Metric(99%)
●US-Imperial and Metric

Looking for crimping brake hose fittings for your hose? Ningbo Hewcho provide include Banjo, Center Support Fittings, Male Fittings, Female Fittings and other special Fittings.
Gallery of hydraulic brake hose fittings
Ningbo Hewcho Industrial is a stamping parts manufacturer, we provide cold forging parts, carbon steel components, cnc turned components, precision turned parts china and etc. Contact us to know more.

Customized Cold Forging Nuts(2022年)

hewcho — 2022-03-24T10:31:04+0900

http://www.hewcho.com/product/customized-cold-forging-nuts.html

Basic Info.
Trade Term: EXW,FOB,CIF.CFR
Payment Term: T/T,L/C, Western Union
Delivery Time:7-30days
Place of Origin: Ningbo, China

Features of our personalized nuts:
·Product name: Cold Forging Sleeve and Bushing
·Material: Carbon Steel, Stainless Steel, Aluminum, Brass
·Machining Tolerances:0.05mm
·Machining Process:
Cold Forging, CNC Turning, Tapping, Drilling
·Min. Order:50,000PCS
·Surface Treatment: Polishing, Heat Treatment, Sand Blasting, Zinc Plated, Anodization, Chemical Fim,
·Packing: Carton Box, Blister tray, Pallet, Wooden Case.
·Certificate:ISO9001:2008, ISO/TS16949

As a personalized nuts manufacturer, we provide cold forged nuts and cold nuts.

Description of cold forged nuts
Ningbo Hewcho is a professional manufacturer of nut forming dies. We offer you a broad spectrum of weld nuts, flange nuts, locking nuts, hexagon long nuts, square nuts and stainless acorn nuts, made of steel, stainless steel or non-ferrous metal – with different surface finishes and coatings, as well as almost every conceivable thread size and material thickness. We will also be glad to produce customised, non-standard nuts for you, such as combination nuts, insert nuts, rivet nuts, crimp nuts, round nuts and rectangular nuts. We take on every new challenge and work together with you to find a cost-effective solution for each application.

We produce some 50 million cold forging nuts per year – that works out to about 100 thousands nuts per day. It’s entirely possible that you’ve already come in contact with one of our products today. Because they’re found in numerous passenger automobile, machinery, hydraulic and pneumatic. They also fasten everyday consumer items safely and securely – for example in washing machines, dishwashers, and other household and garden appliances.

Ningbo Hewcho Industrial is a stamping parts manufacturer, we provide custom cnc aluminum parts, carbon steel components, cnc turned components, turned parts china and etc. Contact us to know more.

Cold Forging Rivets(2022年)

hewcho — 2022-03-24T10:30:41+0900

http://www.hewcho.com/product/cold-forging-rivets.html

Basic Info.
Trade Term: EXW,FOB,CIF.CFR
Payment Term: T/T,L/C, Western Union
Delivery Time:7-30days
Place of Origin: Ningbo, China

Features of cold forged rivets:
·Product name: Cold Forging Rivets
·Material: Carbon Steel, Stainless Steel, Aluminum, Brass
·Machining Tolerances:0.05mm
·Machining Process:
Cold Forging, CNC Turning
·Min. Order:100PCS
·Surface Treatment: Zinc Plated
·Packing: Carton Box, Blister tray, Pallet, Wooden Case.
·Certificate:ISO9001:2008, ISO/TS16949

We provide forging rivets and iron rivets for sale.

Description of forging rivets
Rivet is a nail-shaped item used to connect two parts (or components) with a through hole and a cap at one end. In riveting, riveted parts are connected by self-deformation or interference. Rivets are many and varied.

Ningbo Hewcho produces non-standard customer-specific fan rivets, core rivets, semi-circular heads, flat heads, semi-tubular rivets, solid rivets, countersunk rivets, and hollow rivets. These are usually riveted pieces using self-deformed connections. Cold rivets, generally smaller than 8 mm, are used for hot rivets larger than this size.

Fan rivets are specially designed for manual installation. They can be pulled through the holes in the panel or chassis. They can be made of elastomeric materials and have good toughness. They can be installed quickly even in an interference fit.

The drive rivet is a new type of riveted fastener that is very convenient for riveting. The drive rivet can exhibit its own unique advantages in a relatively small space or without a rivet gun or a rivet gun. Using a hammer or the like to knock the mandrel on one side, two or more connected parts can be riveted successfully.

Full Tubular Rivets, Semi Tubular Rivets, and 1200 Tubular head rivets are mainly used for riveting applications where the surface needs to be smooth and the load is not large. Flat head rivets are used for riveting applications under normal load. The flat head and flat head rivets are mainly used for riveting occasions of non-metal materials such as metal sheets or leather, canvas, and wood. Large flat head rivets are mainly used for riveting occasions of non-metallic materials. Semi-tubular rivets are mainly used for riveting applications with little load. Headless rivets are mainly used for riveting applications of non-metallic materials. Hollow rivets are light in weight and have a weak head. They are used in riveting applications where non-metallic materials are not loaded. Tubular rivets are used for non-loaded riveting applications of non-metallic materials. Signage rivets are mainly used for riveting machines, equipment and other nameplates.

●Round Head Rivets
●Drive Rivets
●Flush Rivets
●Rivet Nuts
●Clipboard Rivets
●Flat Head Rivets
●Semi Tubular Rivets
●Full Tubular Rivets
●Brake Lining Rivets
●Solid Rivets
●Shoulder Rivets

Ningbo Hewcho Industrial is a stamping parts manufacturer, we provide carbon steel components, cnc turned components, cnc turning parts china and etc. Contact us to know more.

Cold Forging Pins(2022年)

hewcho — 2022-03-24T10:30:18+0900

http://www.hewcho.com/product/cold-forging-pins.html

Basic Info.
Trade Term: EXW,FOB,CIF.CFR
Payment Term: T/T,L/C, Western Union
Delivery Time:7-30days
Place of Origin: Ningbo, China

Features of cold headed pins:
·Product name: Cold Forging Pins
·Material: Carbon Steel, Stainless Steel, Alloy Steel
·Machining Tolerances:0.01mm
·Machining Process:
Cold Forging, Hot Forging, CNC Turning, CNC Milling, Grinding, Threading, Tapping, Bending
·Min. Order:50,000PCS
·Surface Treatment: Polishing, Heat Treatment, Sand Blasting, Zinc Plated, Anodization, Chemical Film,
·Packing: Carton Box, Blister tray, Pallet, Wooden Case.
·Certificate:ISO9001:2008, ISO/TS16949

Our company provides forged pin for sale, please contact us if you are interested.

Through precision cold forge, we produce custom pins suitable for use in mechanical engineering, automotive industry, furniture, medical , electronics and other precise locating applications. Custom engineered, cold forged pin from Ningbo Hewcho Industrial exhibit good compressive and shear strength. Our facility is equipped with a full line of cold forging machines to meet your simple as well as complex fastening requirements.

These progressive cold forging machines enable us to manufacture precision pins from carbon steel, aluminum, stainless steel, and brass, in wire ranging up to 45mm(1.75Inch) in diameter. Depending on your specific fastening requirements, we manufacture cold forging pins in a variety of standard as well as custom head styles.

Ningbo Hewcho Industrial utilizes optical sorters and roll sorting machines to detect any defect in the production lots. Using our cold forging, rolling, trimming, and packaging machines, we meet your custom fastening needs, from start to finish. Our qualified sub-contract partners can handle all your heat treatment, and plating requirements.

Tolerances
According to custom requirement.
Normally the diameters tolerance is ±0.05mm.Length tolerance is ±0.1mm
But in many cases, we can achieve: diameters tolerance is ±0.02mm.Length tolerance is ±0.05mm

Material Selection
Cold Pin, in use, according to their work requires selection. Connection with the sale, according to the diameter of the structural characteristics of the connection, according to an empirically determined, then a strength check if necessary. Can directly determine the structure of the positioning pins. Within each connector pin length, about 1 to 2 times their diameter.

Commonly used materials for 35 or 45 pin steel. Material safety pin for 35,45,50, T8A, T10A, etc., after the heat treatment hardness 30 ~ 36HRC. Sheath material available 45,35SiMn, 40Cr, etc., after the heat treatment hardness 40 ~ 50HRC.

Surface Treatment
Yellow Zinc Plated, White Zinc Plated, Zinc-Nickel Alloy Plated

Ningbo Hewcho Industrial is a turned parts manufacturer, we provide carbon steel components, cnc turned components, cnc parts china and etc. Contact us to know more.

METAL MILLING SERVICE(2021年)

hewcho — 2021-11-24T18:30:58+0900

http://www.hewcho.com/product/metal-stamping-parts/

Digital controlled lathe is able to have complicated shape of gyrator processing. Metal milling service is to fasten the semifinished products which will be cut by speedy rotating milling cutter for needed shapes and features. Traditional metal milling service tends to form simple outlooks of milling rough sketches and grooves. Digital controlled lathe can process complex appearances and features. Boring and milling machining center can handle the processing of three or more axises, which is used for machining, moulds, checking-tools, patterns, thin-walled complex surface, artificial prosthesis and blades, etc. When choosing the processing contents of digital controlled milling, we should promote it to play a pivotal role and bring its superiority into full.

Metal Milling Process description
It is a common metal cold working pattern, differing from turning with its tools rotating quickly in the main bearing while its work piece stays relative rest.

The differences between CNC turning service and metal milling service
CNC turning service is for the components of gyrator. It will place the components on the main bearing of the lathe by means of three-jaw chuck, and make them rotate rapidly. Then, according to the generatrix, it uses tools to cut out the shape of product. The bores, screws and texturing can be processed on the lathe but the latter two are being machined at a low speed.

Metal Milling Processing technology
(1) the curved profile, straight line, circle, screw thread or helical curve of work piece, especially the curved profiles of non-circular curves and tabular curves given by mathematical expressions.
(2) space curves or curved surfaces have been offered by mathematical models.
(3) though the forms are simple, the positions with complicated sizes and difficulties in detection.
(4) when using common lathe, it is hard to observe, control and detect the lumen and the inside box.
(5) the holes or flat surfaces with strict requirements of sizes.
(6) the ordinary surfaces or shapes can be processed once incidentally during the clamping.
(7) aiming at general processing contents, taking advantage of digital controlled milling can increase the productivity and reduce the labor intensity efficiently.
The main manufacturing objects that are suitable to digital controlled milling are the components of face profiles, variable angles, spacial surfaces, bores and screws.

Ningbo Hewcho Industrial is a metal stamping parts manufacturers, we provide sheet metal stamping parts, metal stamping parts, cnc turning parts china and etc.

METAL MACHINING SERVICES(2021年)

hewcho — 2021-11-24T18:30:11+0900

http://www.hewcho.com/product/metal-sheet-stamping-brackets.html

The major metal machining services for components include machine work, punching press, precision casting, powder metallurgy and metal injection modeling.

Detailed explanations of the classifications of metal machining services:
The first kind of metal machining services: machine work which shows that a kind of mechanical equipment changes the dimensions, shapes or performances of work piece. Based on the processing methods, there are cutting processing and press working.

The second metal machining services: punching press which depends on external force exerted by press machine and mould to panels, strips, tubing and structural parts, causing plastic deforming or separation so as to acquire the needed sizes and shapes of work pieces (stamping).

There are other metal machining services like non-traditional machining, laser processing, electric discharge processing, supersonic working, electrolytic working, beam of particles processing and ultra high-speed processing, etc. Turning, milling, forging, casting, grinding, numeral control and CNC digital controlled center are parts of metal machining services.

The metal machining services are used for processing of all kinds of components.

The followings also belong to metal machining services.

1. Drilling sercvice
Drilling is used for the processing of solid metal by a roller bit of spiral drill. The lathe for drilling is called drill machine which contains many model numbers and specifications. In addition, drill machine can carry out other processing. If drilling a hole, the place of work piece should be fixed and tight; the bore bit will rotate and work at the same time.

2. Turning and boring a hole
Ordinary machine tools are most popular among turners. Turning is to cut off the metal from work pieces. When the work pieces rotate, the tools cut into them or have turning along them meanwhile.

Boring a hole is a processing method used for enlarging or further machining towards those drilled or cast holes. Boring a hole on the lathe is finished through the rotation and cutting of single-point

3. Milling service
Milling is the use of rotating tools to remove the metals, which has multiple cutting edges named milling cutter.

4. Grinding service
Grinding is a kind of machining method using a grinding wheel to cut the metals off. Grinding is precision processing towards components, after which the sizes will be accurate and the surface is clean. When grinding the round work piece, the work piece rotates and in the meantime it feeds the grinding wheels. If a flat component is grinded, the component will move back and forth under the rotating wheel. Grinding technique is usually applied for fine finishing of the parts that have gone through heat treatment, helping them reach the precise sizes.

5. Planning of shaping machine, housing pane and slotting machine
All these processing can produce precise flat surface with a single-point tool. We should understand the differences between planning of shaping machine, housing pane and slotting machine. Using the first one, the work piece feed should go into the tools which will be to and fro motion on the work piece. The second one implies that when the tools cut the component or have feed for work piece, the work piece will have back and forth movement under the tools.

Ningbo Hewcho Industrial is a bracket manufacturer, we provide metal bracket with holes, custom metal brackets, turned parts china and etc.

GRINDING SERVICE(2021年)

hewcho — 2021-11-24T18:29:41+0900

http://www.hewcho.com/product/hydraulic-cylinder-piston-rod.html

With the increase of the number of high-precision, high-hardness mechanical parts, as well as the development of precision casting and precision forging processes, the performance, variety and output of grinding machines are constantly improved and increased.
External cylindrical grinding machine: It is a common basic type series, mainly used for grinding cylindrical and conical external surface grinding machine.
Internal cylindrical grinding machine: it is a common basic type series, mainly used for grinding cylindrical and conical inner surface grinding machine. In addition, there are grinding machines with both internal and external grinding.
Coordinate grinding machine: an internal grinding machine with a precision coordinate positioning device.
Centerless grinding machine: the workpiece is uncentered, generally supported between the guide wheel and the bracket, and the workpiece is rotated by the guide wheel, which is mainly used for grinding the cylindrical surface. For example, bearing shafts and so on.
Surface Grinding Machine: A grinding machine mainly used for grinding workpiece surface. A. Hand grinder is suitable for small size and high precision workpiece processing, which can process various shaped workpieces including curved surface, plane, groove, etc. B. Large water mill is applicable to the processing of larger workpieces with low machining accuracy, which is different from hand grinder.
Belt Grinding Machine: A grinding machine that grinds with a fast-moving belt.
Honing machine: It is mainly used for processing various cylindrical holes (including optical holes, axial or radial discontinuous surface faces, through holes, blind holes and multi-step holes), as well as tapered holes, oval holes and trochoidal holes.
Grinding machine: A grinding machine for grinding the inner or outer surface of a workpiece.
Guide grinding machine: It is mainly used in grinding machine tool guide surface grinding machine.
Tool Grinding Machine: Grinding machine for grinding tools.
Multi-purpose grinding machine: It is used for grinding cylinder, conical inner, outer surface or plane, and can use servo device and accessory to grind a variety of workpieces.
Special grinding machine: Special machine tool for grinding certain parts. According to its processing objects, it can be divided into: spline shaft grinding machine, crankshaft grinding machine, cam grinding machine, gear grinding machine, thread grinding machine, curve grinding machine and so on.
End surface grinding machine: A grinding machine for grinding gears.

Surface Grinding Service

The external cylindrical grinding machine is a grinding machine for cylindrical, conical or other cylindrical surfaces of the workpiece and the end surface of shaft shoulder. It is the most widely used and can process a variety of cylindrical conical outer surfaces and shaft shoulder end grinding machine.

Among all grinding machines, external cylindrical grinding machines are the most widely used type of machine tools. It is generally composed of the basic part of the cast iron bed, workbench, supporting and driving the workpiece to rotate the head rack, tailstock, grinding wheel mounted grinding wheel rack (grinding head), control grinding workpiece size of the lateral feed mechanism, control the movement of machine parts electrical and hydraulic devices and other major components. The external cylindrical grinder can be generally divided into the ordinary cylindrical grinder, universal cylindrical grinder, wide grinding wheel cylindrical grinder, end face cylindrical grinder, multi-grinding wheel rack cylindrical grinder, multi-grinding wheel cylindrical grinder, cut-in cylindrical grinder and special cylindrical grinder.

Thread Grinding Service

Thread grinding machine is a thread processing machine that uses formed grinding wheels as grinding tools to process precision threads. Thread grinder is mainly used in the production workshop and tool workshop of the machine manufacturing industry. It is used mostly in the workshop of a tool factory and measuring tool factory to produce thread processing tools and thread measuring tools. The layout of the universal thread grinder is similar to that of the external cylindrical grinder. The worktable moves on the lathe bed for longitudinal feed motion (see machine tool). The grinding wheel frame is used for lateral feeding (see figure) to grind workpieces with different lead angles. The grinding wheel shaft can rotate to a certain angle in the vertical plane. In order to eliminate the reversing gap during the two-way grinding, a clearance eliminating mechanism is provided in the transmission chain. The machine tool has a shovel mechanism and a pitch cumulative error correction mechanism. All kinds of precision threads (such as external thread, an internal thread, taper thread and multiple threads, etc.) can be ground by single thread and multi-thread grinding wheel. Machine tools are widely used for processing thread gauges, thread rolling wheels, ball screw, ball nut, worm, tap, hob, thread milling cutter and other threaded parts. This machine tool has a complex structure and many accessories. It is mainly used for tool shop.

Universal Grinding Service

Cylindrical, conical or other shaped surfaces of the outer surface and the end face of the grinding machine. The workpiece is supported between the two tips of the headframe and the tailstock and is rotated by the dial of the headframe for circular feed motion. The headstock and tailstock are mounted on the workbench for longitudinal reciprocating feed motion (see machine tool). The workbench is divided into two layers, and the upper working table can adjust a small Angle to grind the conical surface.

Spindle Grinding Service/ Shaft Grinding Service

The spline shaft grinder is a precision CNC machine tool for grinding high-precision spur or spiral spline shafts, spline broaches, plug gauges, rolling wheels, and gears. Its grinding principle is forming grinding, that is, the cross-section of the grinding wheel shaft is trimmed into a section corresponding to the gear tooth groove, and the forming grinding process is performed.

Centreless Grinding Service/ Roll Grinding Service

The centerless grinding machine is a kind of grinding machine which does not need to use the axle center of the workpiece for grinding. It is mainly composed of grinding wheel, adjusting wheel and workpiece support. The grinding wheel actually takes the grinding job, adjusting wheel controls the rotation of the workpiece and the feed speed of the workpiece. As for supporting the workpiece during grinding, these three parts can be matched in several ways. Except for stopping the grinding, the principle is the same.

Ningbo Hewcho Industrial is a hydraulic cylinder piston rod manufacturers, we provide piston rod cylinder, hydraulic piston rod, precision turned parts china and etc.

FORGE SERVICES(2021年)

hewcho — 2021-11-24T18:29:09+0900

http://www.hewcho.com/product/cold-forging-pins.html

Forging is a processing method that uses forging machinery to pressure the metal blanks, which obtains certain mechanical properties, certain shape and size of forgings by the plastic deformation of the metal blanks. It is also one of the two major components of forging (forging and stamping). Forging can eliminate defects like loose as cast condition that produced in the smelting process of metal and optimize the microstructure. At the same time, the mechanical properties of forgings are generally better than the same material castings because of the preservation of a complete metal flow line. Most of the important parts with high load and severe working conditions in the related machinery use forgings except some simple shape parts can use rolling plate, profiles or welding parts.

Deformation temperature

The starting recrystallization temperature of steel is about 727 ℃. However, 800℃ is widely used as the dividing line: the hot forging is higher than 800 ℃; the forging between 300 to 800℃ is called warm forging or semi hot forging; and the forging at room temperature is called cold forging. Forgings that used in most industries are hot forging while warm forging and cold forging are mainly used for forging of parts such as automobiles and general machinery. Warm forging and cold forging can be effective.

Forging categories

As mentioned above, forging can be divided into hot forging, warm forging and cold forging according to the forging temperature.
According to the forming mechanism, forging can be divided into free forging, die forging, ring rolling and special forging.

1. Free forging refers to the processing methods that use simple, general tools, or directly exert forces to the blank between the upper and lower anvil iron in the forging equipment in order to obtain the required geometrical shape and internal quality of forgings from the deformation of the billet. Forgings produced by free forging method are known as the free forging parts. Free forgings are mainly a small batch production of forgings, which use forged equipment like forging hammers, hydraulic presses and so on to have forming processing on the billet and obtain qualified forgings. The basic working procedure of free forging includes upsetting, pulling, punching, cutting, bending, torsion, dislocation shifting and forging. Hot forging is adopted in free forging.

2. Die forging. Die forging is divided into open die forging and closed die forging. Metal blanks are compressed and deformed in a certain shape of the forging die to obtain forgings. Die forging is generally used in producing small weight and large batch of parts. Die forging can be divided into hot forging, warm forging and cold forging. Warm forging and cold forging are the future development direction of die forging, which also represent the level of forging technology. Forge services play an essential role in the future development of forging.

According to the material, die forging can also be divided into ferrous metal die forging, non-ferrous metal die forging and powder products forming. As the name suggests, the material is individually ferrous metals like carbon and steel, non-ferrous metal like copper and aluminum, and powder metallurgy materials.
Extrusion should be attributed to die forging, which can be divided into heavy metal extrusion and light metal extrusion.

Closed die forging and closed upsetting are two kinds of advanced technology of die forging. The utilization rate of material is high because there is no burr. The finishing of complex forgings may be accomplished with only a process or several processes. Because there is no burr, the force area of forgings and the required load reduce. However, it should be noted that the blank can not be completely restricted. So, we should strictly control the volume of the billet, the relative position of the forging die and the measurement of forgings, and strive to reduce the wear of forging die.

3. Ring rolling . Ring rolling refers to the ring-shaped parts with different diameters that is produced through a dedicated equipment mill, and it is also used to the production of wheel parts such as automobile wheels and train wheels.

4.Special forging. Special forging includes forging methods like roll forging, cross wedge rolling, radial forging and liquid die forging. These methods are suitable for the production of some certain special shape parts. For example, roll forging can be used as an effective preforming process, which significantly reduces the subsequent forming pressure; cross wedge rolling can produce parts like steel ball and shaft; and radial forging can produce forgeable piece like large barrel and step shaft.

Forging features

Compared with castings, the microstructure and mechanical properties of metal can be improved after forging. After the hot working forging process, the casting organization deforms, and the original coarse dendrite and columnar grains turn into the equiaxed recrystallization with thinner grains and uniform size because of the deformation and recrystallization of the metal. It can compact and weld the original segregation, porosity, porosity and slag of the steel ingot. In this way, the organization becomes closer. It can also improve the plasticity and mechanical properties of the metal.
The mechanical properties of castings are lower than those of the same material forgeable pieces. In addition, the forging process can guarantee the continuity of the metal fibrous tissue and make the fibrous tissue of the forgings consistent with the shape of the forgings. The complete flow line of metal can guarantee the parts have good mechanical properties and long service life. The forgeable pieces which are produced by processes like precision die forging, cold extrusion and warm extrusion, can not be compared with castings.

Forgings are objects in which metals are pressured to shape required shapes or suitable compression forces through plastic deformation. This power is typically achieved by using a hammer or pressure. The forging process builds a refined particle structure and improves the physical properties of the metal. In the actual use of parts, a correct design can make the particle flow in the direction of the main pressure. Castings are the metal forming objects obtained by various casting methods. It is the object with a certain shape, size and performance, which is obtained by pouring, pressing, inhaling or other casting methods to inject the smelted liquid metal into a prepared mold and after cooling through sand removal, cleaning and reprocessing.

Ningbo Hewcho Industrial is a cold forging suppliers, we provide cold headed pins, precision cold forge, forged pin, china cnc precision machining and etc.

CNC TURNING SERVICES(2021年)

hewcho — 2021-11-24T18:28:39+0900

http://www.hewcho.com/product/cold-forging-parts/

CNC turning services indicates that lathe process which is majorly used for turning done by lathe tool to rotating workpiece belongs to machine work. Turning lathe is primarily applied for machining axis, reel, bush and other workpieces with rotary surface, which is extensively seen in machine manufacture and repair plant with regard to processing. CNC turning services is commonly used in the processing.

Outline of technology of CNC turning services
Taking advantage of rotational movement of workpiece and rectilinear motion or curvilinear motion of tool to change the shape and size of workblant is essential to meet the requirement of drawing on the lather.

CNC turning services is aiming at workpieces by means of tools in a rotational way on the lathe compared with cutter. The cutting energy of CNC turning services is provided by workpieces rather than tool. CNC turning services is most fundamental and common, occupying a crucial area in manufacturing. They are suitable to process rotary surfaces, with which a majority of workpieces can apply this kind of processing method, such as inside and outside cylindrical, conical, end face, cannelure, screw thread , and revolving and forming surface. Besides, the main tool is turning lathe.

Technical question of CNC turning services
Lathe is the widest application among all kinds of metal-cutting machine tool, about 50%, which is used for not only turning worked by cutter to workpieces but drilling, reaming, tapping and knurling operated by related tools. According to the differences of technique characteristics, forms of layout and structural features, lathes can be divided as being horizontal, surfacing, vertical, capstan and copying, among which most of them are the fist style.

CNC turning services is the most widely used in machine manufacturing, including a great number of lathes, numerous workers, wide range of processing, a lot of used tools and clamping apparatus. Therefore, the safe technical questions distinguish apparently, and the focal points of work are following:

1. The damage and safeguard procedures of cutting. A variety of components of steel contain good toughness of lathes. The cutting produced by CNC turning services is rich in plastic crispation, with sharp edge. When the steel is cut at a high speed, hot, red and long chips will be turned out, easily hurting others. And at the same time, they will winding round workpieces, tools and knife rest, so we should often use iron hook to clean or snap them in time; when necessary, we should pull up and remove them, but it is not allowed to go forward with hands. Chip breaking, the measurements of controlling the direction of chip ejection and additional barriers are applied often in order to prevent from hurting by chips. What chip breaking does is to make out a chip breaker or step; scrap cutter can be applied at the proper time, as well as mechanical clamping tools.

2. Card mount of workpiece. During the processing of CNC turning services, the lathe breaks down, breaks off or cracks up the tools and the workpieces drop off or fly away to hurt others due to improper card mount of workpiece. Thus, for sake of safety production of the processing of CNC turning services, when mounting the card, we should pay attention to it. Suitable clamping apparatus should be chosen based on varied sizes and shapes of components. No matter three-jaw or four-jaw chucks or specific fixture and principal axis, their connections should be stable and reliable. The workpieces should be placed rightly and tightly; for bigger ones, annular tubes can be used, ensuring there is no displacement, falling off and throwing away when the workpieces rotate speedily and are cut forcefully. If necessary, apex and center frame ought to be applied to strengthen the effect of fixation. Taking down the wrench immediately is the next step after the fixation.

3. Safe operation. Not until the lathe is checked completely and conformed to be in good conditions will it start working. The card mounts of workpiece and tool must be placed properly with firmness and trustworthiness. It has to stop when replacing the cutters, discharging and measuring the workpieces during the processing. It is prohibited from touching with hands or cleaning with staple if the workpiece rotates. The cutting speed, load and other stuff ought to be taken care of, preventing from overburdened processing. When it comes to the file, the turning tools should be moved to a secure location, with right hand forward and left hand behind, keeping off sleeves being drown into. Specially-assigned person will be responsible for use and maintenance while others should stay away from it.
Matters need to be paid attention to.

The technique of digital controlled lathe processing is similar to common type; however, because the former can finish clamping for one time and the processing of all CNC turning services automatically, several aspects want keeping our eyes on.

1. To choose the cutting parameters reasonably:
As far as highly efficient machining of metals, processed materials, cutter and cutting conditions are three key factors that decide the processing time, cutter life and processing quality. To choose the cutting conditions properly is a necessary premise for cost- effective processing method. Those conditions include the speed, load and cutting-in which damages the tools directly. With the increasing of cutting speed, the temperature of tool nose will raise, causing mechanical, chemical and hot abrasion. When the speed goes up with 20%, the service life of tool will be down with 1/2. The relation between feed rates and the behind tool wear occurs in an extremely small range. However, the bigger the load is, the much more the abrasion behind the tool will be as the cutting temperature rises, while its impact on tools is weaker than cutting speed. Cutting-in has the smallest influence on tools. But the cut materials will produce hardened layer when slight cutting-in takes place, which will also affect the life of tools. The users ought to select the cutting speed on the basis of the materials, harness, cutting status, varieties, loads and cutting-in of cut materials. And these elements determine the most suitable processing conditions as well. Regular and stable tool wear are the ideal conditions for the service life. Nevertheless, in reality, the choice of the service life of tools are related to the degree of abrasion, the scale change of work piece, the surface quality, the cutting noise and the heat of processing. If the processing conditions are settled down, a study should be conducted based on where it is. With respect to difficult-to- machine materials such as stainless steel and heat-resisting alloy, it is good to use refrigerant or cutters with excellent rigidness.

2. To choose turning tools reasonably:
(1) when it is rough turn, high strength and durability should be put in the first place in order to meet the requirements of large back engagement of the cutting edge and load;
(2) when it is finish turning, high precision and good durability should be considered preferentially, conforming to the demand of machining precision;
(3) to use milling machine and machine clamps as much as possible can reduce the time of replacing the knives and be handy for tool setting.

3. To select the clamp logically:
(1) common working clamping fixture ought to be the first choice while avoiding the special clamping;
(2) the criterion of component location coincides so as to reduce the error of position.

4. To determine the processing route:
The meaning of it is the movement locus and directions of relevant workpieces of cutters during the digital controlled lathe processing.
(1) the needs of working accuracy and rough surface should be met;
(2) the processing route should be shortened as much as possible, reducing the banking time of tools.

5. The connections between processing route and working allowance:
Under the circumstances of digital controlled lathe processing is not popularized, generally the margin of workblank, especially those contain forging and casting hard cortex, will be arranged to process on the general lathes. When it is a must that digital controlled lathe processing proceeds, flexibility arrangement will come out according to the procedure.

6. The installation points of clamping:
The connections between hydraulic chuck and hydraulic pressure grip cylinder are realized by pull rods. The points of hydraulic chuck clamping are: first, a spanner should be applied to demount the nuts of hydrocylinder, discharge the stay tubes, and meanwhile pull out the rear-end of spindle; second, unloading the chuck with a spanner is a stepping-stone for fixing the screw.

Ningbo Hewcho Industrial is a cold forging suppliers, we provide cold forged components, cold forging parts, cnc precision machining china and etc.

CNC MACHINING SERVICE IN CHINA(2021年)

hewcho — 2021-11-24T18:28:04+0900

http://www.hewcho.com/product/cnc-turning-sleeve-bushings.html

At present, as the leading industry of China's national economy, the machinery manufacturing industry is still the main support of China's economic growth. As an important support for economic and social development, the machinery manufacturing industry is the main channel of employment in China's cities and towns and the concentrated embodiment of international competitiveness.

Development status of CNC Machining service in China

Reform and opening up, China's machinery manufacturing industry has achieved rapid development and tremendous achievements by relying on the advantages of the broad market, cheap labor and raw material costs, and socialist centralized efforts to do major events. It has established a complete industrial production system with a considerable scale and a certain level, which has become an important pillar industry for China's economic development.

The future development of CNC machining service in China

With the development of economy and technology, China's machinery manufacturing industry adjusts its development ideas, adjusts its industrial structure, improves the technological content of its products, and enhances the added value of its products, and taking the road of sustainable development of transformation and upgrading. To carry out transformation and upgrading and enhance competitive strength are the needs of self-revolution, economic situation and sustainable development of the machinery industry.

The innovation of CNC machining service in China

Electronic technology, microcomputer, sensor, electro-hydraulic servo, and control system integrated transformation of traditional engineering machinery products, computer-aided design, auxiliary manufacturing and auxiliary management equipment engineering machinery manufacturing, IT network technology also equipped engineering machinery sales and information transmission system. The new construction machinery products are incomparable in terms of work efficiency, work quality, environmental protection, operational performance and automation, and are moving towards further intelligence and robotization. The application of information technology such as the Internet, big data, and cloud computing is developing in depth. The integration degree of the intelligent and humanized "two-oriented" of the mechanical manufacturing industry is being further deepened, and product technology must continue to develop in the direction of informationization, intelligence, and humanization to meet future market demands.

CNC machining service in China has a promising future

The overall framework of the “Belt and Road” is to form an interconnected Asian economic system through infrastructure construction and other aspects. The cooperation focuses on policy communication, facility connectivity, trade smoothness, capital finance, and people's hearts. The “Belt and Road” has won the support of many international organizations such as ASEAN, EU, and the Arab League. By establishing extensive communication and cooperation mechanisms with nearly 60 countries and more than 4 billion people. The “Belt and Road” can help China obtain external resources and contribute to the export of China's commodities, capital, and applicable technology.

Technology leads CNC machining service in China to a bright future

The investment in technology brings vitality to the transformation and upgrading. In recent years, the construction machinery industry has been affected by the economic environment at home and abroad, and the situation is relatively depressed. In this atmosphere, enterprises in the industry generally improve product performance and quality by increasing technology input and improving product science and technology content, and get rid of the predicament of homogenization, in the hope of taking the initiative in the increasingly fierce market competition. This situation objectively promoted the improvement of China's construction machinery technology level, and the competitiveness of independent brand enterprises was enhanced.

Ningbo Hewcho Industrial is a cnc turned parts manufacturer, we provide carbon steel components, cnc turned components, custom bushings and etc.

What is the Function of CNC Milling Machine Parts and Components(2021年08月31日)

hewcho — 2021-08-30T15:57:43+0900

http://www.hewcho.com/what-is-the-function-of-cnc-milling-machine-parts-and-components.html

The CNC milling machine has the functions of milling machine, boring machine and drilling machine, which makes the working procedure highly centralized. When replacing the workpiece, it only needs to use the processing program, clamping tool and adjust the tool data stored in the CNC device, thus greatly shortening the production cycle and improving the production efficiency. There are various forms of CNC milling machines. Although different types of CNC milling machines differ in composition, there are many similarities. Typical CNC milling machines are divided into six parts, that is, bed, milling head, worktable, cross feed part, lifting platform and cutting oil cooling circulation system.

The following is a brief introduction of the role of cnc milling machine parts and components:
1. Bed
The reinforcing ribs inside the bed are arranged reasonably and have good rigidity. There are four adjusting bolts on the base to facilitate the adjustment of the machine tool. The cutting oil pool is set inside the bed.
2. Milling head
The milling head part is composed of two parts: a step gearbox and a milling head. The spindle of milling head is supported on high-precision bearing to ensure that the spindle has high rotation accuracy and good rigidity. The spindle is equipped with quick cluster cutter nut, adopting mechanical stepless speed change, wide adjustment range, stable transmission and convenient operation. The brake mechanism can make the spindle brake quickly and save the auxiliary time. When braking, open the stop ring through the brake handle to make the main shaft brake immediately. When starting the main motor, pay attention to release the spindle brake handle. The milling head part is also equipped with a servo motor, an internal toothed pulley, a ball screw pair and a main shaft sleeve, which form a vertical feeding transmission chain to make the main shaft move in a straight line in a vertical direction.
3. Worktable
The worktable and bed saddle are supported on the wide horizontal guide rail of the lifting table. The longitudinal feed of the worktable is driven by the servo motor installed on the right end of the worktable. The precision ball screw pair is driven by the internal toothed pulley, so that the worktable can obtain the longitudinal feed. The left end of the table is equipped with a hand wheel and a dial for manual feeding. The wear resistance, movement stability and accuracy retention of the guide rail are improved, and the phenomenon of low-speed crawling is eliminated.
4. Cross feed part
An AC servo motor is installed in front of the lifting table to drive the bed saddle to make a transverse feed motion, and its working principle is the same as that of the table. In addition, the front end of the transverse ball screw is also equipped with a feeding hand wheel, which can realize manual feeding.
5. Lifting table
A locking handle is arranged on the left side, and a long handle is arranged on the front end of the locking handle to drive the bevel gear and the screw of the lifting table to rotate, so as to obtain the lifting movement of the lifting table.
6. Cutting oil cooling system
The cooling part consists of cutting oil pump, oil outlet pipe, oil return pipe, switch and nozzle. The cutting oil pump is installed in the inner cavity of the machine tool base, which pumps the cutting oil from the oil storage pool in the base to the oil outlet pipe, and then ejects it through the nozzle to cool the cutting area. In the lubrication part, the motor-driven lubrication method is adopted. The main shaft sleeve, guide rail and ball screw are lubricated by the lubricating pump through the oil separator to improve the service life of the machine tool.

Great changes have taken place in the overall layout, appearance, transmission system, structure of cutter system and operation mechanism of CNC milling machine. The purpose of this change is to meet the requirements of CNC milling machine and give full play to the characteristics of CNC milling machine.

Ningbo Hewcho Industrial is a professional turned parts manufacturer, we provide milling components, cnc machining china, hydraulic cylinder rod and etc. Want to know more? Please contact us.

Turning Service(2021年08月30日)

hewcho — 2021-08-30T15:57:12+0900

http://www.hewcho.com/service/turning-service.html

CNC turning is one of machining process. Same as other machining processed, during the cutting, part of the initial material is removed. The machinery that carry out this process is called turning machine or lathe.

Ningbo Hewcho offers metal precision CNC turned parts including carbon steel, stainless steel, aluminum, brass, and copper. This capability utilizes state of the art vertical turning machines and lathes that utilize advanced features, which allow us to turn complex, precise, geometries. We can accommodate work pieces up to 60mm in diameter and 120mm in length with tolerances to ±0.01mm.
What is turning and how the production done?
What are CNC turned parts?
Turned parts are important functional components for products and can be found in many areas of today's era. Thus, with the introduction of CNC technology, the application possibilities of these turned components could be further extended. Whether the smallest micro parts for the watch industry or long turning parts for mechanical engineering, where something rotates or moves is usually a turning part behind it. Here, very hard materials such as titanium as well as soft materials such as plastic parts be machined with high process accuracy and cost-optimized, which is why the production of turned parts has become an integral part of production in many areas.How is the production done?
Turning belongs to the group of separation processes and takes place on manual lathes or CNC controlled lathes. In this machining process, as opposed to milling, the workpiece rotates about its own axis, so the main cutting motion is performed by the rotating workpiece. In order to lift a chip while the tool is moved with a carriage along the rotating workpiece. Thanks to the latest developments in the field of lathe technology, complex filming can now be carried out, which was previously only possible on milling machines.Which axes are available when turning?
The axis of rotation of the main spindle, around which the workpiece and the chuck rotate, is called the Z-axis when turning and runs from the chuck towards the tailstock. The X-axis is perpendicular to it. A Y-axis is not necessary during normal turning because the tool height above the XZ plane is fixed when setting up the lathe. In contrast, the angle of the main spindle is often displayed as a third coordinate on CNC-controlled lathes. The scale division on the X-axis doubles the actual movement when turning, as the movement of the tool affects the radius of the workpiece.

Tools and cutting materials for turning
Roughing or finishing
The right choice of tools is an essential quality feature when turning, which is why different tools are used depending on the requirements. Thus, the cutting radius determines whether a tool can be used for roughing or finishing and is an important selection criterion. The following applies: In general, inserts with a radius of less than 0.8 mm are used for finishing . If the radius of a cutting edge is larger, the tool is ideal for roughing.

The right tool for every material
When turning metallic materials such as stainless steel , aluminum or brass a large chip formation occurs, which is why the machining process usually hard inserts with a chip breaking edge are the optimal manufacturing solution. For brittle materials such as gray cast iron, it makes sense to use ceramic inserts with a smooth surface. The service lives depend on the cutting speed, the feed rate and the material.

Cutting materials in turning
The correct selection of the cutting material is aimed at wage turning according to the material to be machined and the economic efficiency. Important properties for the selection of the suitable cutting material are its wear resistance, which can be significantly increased by coatings. Depending on the material, different cutting materials are used due to the different properties.

Precision CNC Turning Service Feature
Machinery Axis2 X and Z
MaterialAluminumCarbon Steel
Stainless SteelBrass
CopperAlloys Steel
Bronze Alloys
FeaturesBoringDrilling
TappingKnurling
ThreadingReaming
TurningGrinding
Turning DiameterUp to 75mm/3In
Turning LengthUp to 150mm/6In
Turning Tolerance±0.01mm/
Inspection CapabilitiesCMMProjector
Imaging Measuring InstrumentHardness
Metallographic MicroscopeNon-destructive Equipment
Automatic Thread Inspection Equipment
Surface FinishedZinc PlatedSand Blasted
Nickel PlatedBlacking
TD CoatingPhosphating
DacrometZinc-Nickel Plated
ThreadUNFUNC
NPTSAE
MetricBSPP
BSPTJIS
DING
RZG
CertificationISO9001:2008ISO/TS16949

Advantage and Application
The advantages of turning

Turning has many advantages over other machining processes. The following advantages make this technology an important basic technology.

●High dimensional accuracy
●Consistent quality
●Great productivity
●An extensive variety of materials
●Low tool wearWhere turned parts are used

Turned parts find a variety of applications in today's industry. Wherever something turns or moves, often turned components are used :

●Electrical Appliance Industry
●Automotive Industry
●Electronics Industry
●Connection technology
●General Industry
●Machinery and equipment

Ningbo Hewcho Industrial is a professional stamping parts manufacturer, we provide cnc turning china, cnc machined components, hydraulic cylinder rod and etc. Want to know more? Please contact us.

Stainless Steel CNC Machining Service(2021年08月30日)

hewcho — 2021-08-30T15:56:40+0900

http://www.hewcho.com/service/stainless-steel-cnc-machining-service.html

Stainless steel CNC machining services materials

Stainless steels are often referred to as problem materials in the field of machining. Above all, the great toughness of stainless steels and their tendency to stick is causing difficulties for many users. Stainless steels, for example, are increasingly prone to build-up edge with increasing nickel content. Also important for the assessment of machinability is the chromium content. Stainless steels are divided into three main groups: austentia, ferritic / martensitic and duplex steels. The steels of the first two groups are significantly better to cut than the latter (see Figure 1).

The largest share is held by the austenites; here can again be divided into 4 groups: In optimized for machining so-called "prodec" steels, as they are z. B. Sandvik steel under the trade name "Sanmac" and in normally machined materials, such as 1.4401 or 1.4436. In addition, there are two particularly demanding material classes in machining, the precipitation-hardened stainless steels and the so-called super austenites. On the basis of these criteria, the cut data recommendations of the company Sandvik are then constructed, which additionally distinguishes between rolled and cast stainless steel, since the cast structure is generally significantly worse to machine than the structure of forged or rolled steel.

Turning the easiest

Of the three most important machining processes - turning, drilling and milling - turning is the most unproblematic. For turning stainless steels is usually worked with emulsion as a cooling lubricant. It come to roughing indexable inserts with stable but positively executed chipbreaker geometry, such. As the -MM or -MR geometry used. These insert geometries are used in combination with relatively tough coated carbide grades. Especially for demanding turning operations, eg with severe cutting interruptions, the Sandvik grade GC2035 has proven itself here (see picture 2).

Finishing can be carried out with coated fine and ultra-fine tungsten carbide (GC 1025, GC 2015) or cermet (CT 525) with sharp-edged cutting edges. In order to obtain a controlled chip breaking, inserts with -ML (MóISO-M, L óLight cuts) geometry should be preferred.

Drilling stainless steel materials

Drilling stainless steel materials is much more demanding than turning; This is due to the fact that when drilling due to the process in the center of the tool, the cutting speed is always zero. Accordingly, in the case of drills with indexable inserts, such as the Coromant U drill, a tough carbide grade (GC 1020) should be used in the center. In contrast, a wear-resistant grade (GC3040) can be used as the outer cutting edge. This combination of two different cutting materials makes it possible to optimally adjust the cutting edge stress during machining. For solid carbide drills as well, Sandvik has achieved a unique combination of two carbide grades in a single drill with the TwinGrade GC1030.

When milling stainless steels, especially the strong tendency to built-up edge formation is problematic. If it comes increasingly to the formation of built-up edges, the tool life decreases dramatically. The chips stick to the cutting edge and are pulled into the cut when the cutting edge re-enters the workpiece, and the cutting edge is likely to be damaged. In order to minimize build-up edge build-up as far as possible, positive indexable inserts with a rake angle of at least 20 ° are used. In order to still get stable cutting, particularly tough carbide grades are used. In principle, two machining strategies are possible when milling: it can be run at low cutting speeds and emulsion, or it is worked at high speeds and dry. In the former method, built-up cutting is avoided by using the cooling lubricant and the finished surfaces are slightly better than dry machining, but productivity is low due to the low cutting speed required to achieve acceptable tool life (see Figure 4).

dry milling

When dry milling, the cutting speed is chosen to be much greater, so high that the chips no longer stick to the cutting edge. With the right combination of tool geometry and cutting parameters, most of the heat "goes away" with the chip and the workpiece remains relatively cool. This strategy allows a very high productivity compared to wet processing and is therefore usually much more economical. Sandvik carbide grades GC2030 and GC2040 are particularly suitable for this type of machining.

If the achieved surface qualities are not sufficient for the more economical dry machining, the two methods can also be combined: First, roughing is done with high cutting data without cooling lubricant, but the last cut is made with emulsion and approx. 40% reduced speed. Alternatively, the last cut can also be carried out dry with cermet as cutting material; This is particularly useful when various tools are used for roughing and finishing.

Ningbo Hewcho Industrial is a professional stamping parts manufacturer, we provide stainless steel machining china, cnc machining services china, hydraulic cylinder rod and etc. Want to know more? Please contact us.

Precision Brass Services(2021年08月30日)

hewcho — 2021-08-30T15:56:10+0900

http://www.hewcho.com/service/precision-brass-services.html

As versatile a material as the copper-zinc alloy brass can be processed in just as diverse ways. Of course, it depends on the form in which it is present as a basic material and what should arise from it.

The processing of precision brass services

Among other things, the brass processing is possible in the following way:
mill
Rotate
Drill
To bend
To cut
Due to the material properties of brass, it is generally ideal for machining .

Precision brass services materials

1. Milling brass
Nowadays, brass milling often involves the use of a CNC milling machine , which offers very high flexibility and manufacturing precision in the production of milled parts made from this copper alloy. This is not least due to the coordinate-based computer control.
With multi-axis CNC milling, significantly more complex parts can be produced with almost all workpiece geometries than would ever be possible with conventional milling. From the machining of rotationally symmetric or parallelepiped workpieces over 3D free-form surfaces to the smallest components such as gears, almost every part of this type of brass machining can be realized.

2. Turn brass
Even when turning, ie the rotationally symmetrical machining of brass, CNC technology is often in demand. In contrast to milling, however, this moves the workpiece - it rotates longitudinally in the CNC lathe about an axis and thus performs the main cutting motion. By the feed movement of the tool slide firmly clamped turning tool along the workpiece, finally, the desired shape of the brass rotating part is formed. All movements in the lathe also run completely after programming. There are also different classifications within the turning process, whereby the most important according to DIN 8589 . These are the procedures:
Facing
Turn around
Schraubdrehen
Wälzdrehen
Profiling
form turning
In addition to CNC lathes, universal lathes are also used, especially for low quantities , small batches or individual parts. In so-called machining centers, both milling and turning brass are possible.

3. Turn brass
The bending behavior of brass depends essentially on the alloy composition and varies from brass to brass. Basically, the metal consists of copper and zinc and may contain other alloying additives such as lead or aluminum. With decreasing copper content, however, the brittleness of the material increases. So while one type of brass can reach a certain bending angle, another material will break or break at the same angle.
For brass pipes with small wall thicknesses and diameters, not too much force is required for bending. However, it is recommended to heat the brass beforehand . If you want to bend very tight radii, the brass should be annealed in a temperature range of about 450 ° C to about 600 ° C at the bending edge, about with a burner.
This annealing prevents material from cracking, but the workpiece remains relatively soft at the annealed location. This can be a disadvantage especially if the processed semi-finished product - such as a brass profile or a brass rod - should withstand loads. For brass pipes , this is usually not required.

4. Cut brass
Depending on the requirements for the final result, suitable methods for cutting brass have been laser cutting, water jet cutting or circular sawing or with a shearing device. With the latter, thin brass sheetcan be excellently cut.

5. Drill brass
Brass is generally a metal that develops chips very quickly during machining. If you want to drill brass, the drill should have steep flutes and the speed should be higher. The short shavings spray heavily when drilling - therefore, the wearing of goggles is absolutely necessary.

Ningbo Hewcho Industrial is a professional turned parts manufacturer, we provide china machining, hydraulic cylinder rod and etc. Want to know more? Please contact us.

Forge Services(2021年08月30日)

hewcho — 2021-08-30T15:55:36+0900

http://www.hewcho.com/service/forge-services.html

Deformation temperature

Forging categories

Forging features

Ningbo Hewcho Industrial is a professional china cnc machining parts manufacturer, we provide cnc machining parts china, hydraulic cylinder rod and etc. Want to know more? Please contact us.

CNC Engineering Services(2021年08月30日)

hewcho — 2021-08-30T15:55:00+0900

http://www.hewcho.com/service/cnc-engineering-services.html

CNC Numerical Control milling machine in the CNC engineering services is controlled by digitizing signals with an electronic meter.

Numerical control milling machine is a kind of automatic machining equipment developed on the basis of general milling machine. Both of them have the same processing technology and similar structure. Numerical control milling machine is divided into two categories: no - strip and strip. CNC milling machine with cutter library is also known as machining center.
Functional features of CNC engineering services
In addition to the characteristics of ordinary milling machine, CNC milling also has the following characteristics:
CNC engineering services are with good adaptability and flexibility of parts processing. It is able to process parts with complex contour shape or difficult to control size, such as mold parts and shell parts;
CNC engineering services can process parts that cannot be processed or difficult to be processed by ordinary machine tools, such as complex curved parts described by mathematical models and three-dimensional curved parts;
CNC engineering services are able to process parts that need to be processed in multiple processes after the first clamping and positioning;
CNC engineering services have high machining accuracy, stable and reliable machining quality. The pulse equivalent of the numerical control device is generally 0.001mm, and the high-precision numerical control system can reach 0.1μm. In addition, the numerical control machining also avoids the operating error of operators.
CNC engineering services' high degree of production automation can reduce the labor intensity of operators. It is beneficial to the automation of production management.
CNC engineering services have high production efficiency. Generally, the CNC milling machine does not need to use special process equipment such as special fixture. When the workpiece is replaced, workers need only the machining procedure, clamping tools and tool data stored in the numerical control device. The production cycle can be shortened at a large extent. Secondly, the numerical control milling machine has the function of milling machine, boring machine and drilling machine. The process is highly concentrated and the production efficiency is greatly improved. In addition, the spindle speed and feed speed of the CNC milling machine are infinitely variable, so it is helpful to select the optimal cutting amount.

Processing characteristics of CNC engineering services
If the processing position is frame plane and not in the same equal altitude, point position - straight line system CNC milling machine is the best choice. If the machining position is a curved contour, the system of two-coordinate linkage and three-coordinate linkage should be selected according to the geometric shape of the curved surface. According to the requirements of parts processing, staff can add a numerical control dividing head or a numerical control rotary table on the basis of the general numerical control milling machine. At this time the machine tool system is the four coordinates numerical control system, which can process the spiral groove, the blade part and so on.
Size
The CNC milling machine with lifting table of smaller specification, whose table width is less than 400mm, is most suitable for the processing of small and medium parts and the contour milling of complex surface. Larger milling machines, such as gantry milling machines, have workstations of 500-600mm or more and can be used to process large and complex parts.
Precision
CNC engineering services have developed well in our country. The precision standard of CNC milling machine has been established in our country. What’s more, CNC vertical milling machine and lifting table milling machine have professional standards. According to the standard, the positioning accuracy of the linear motion coordinate is 0.04/300mm, the repeated positioning accuracy is 0.025mm, and the milling circle precision is 0.035mm. In fact, the machine tool factory precision has a considerable amount of storage, compared to the national standard tolerance value of about 20% compression. Therefore, from the point of precision selection, the general CNC milling machine can meet the processing needs of most parts. For the parts with high precision, the precision CNC milling machine should be considered.
Batch
For bulk parts processing, users can use a special milling machine. If the parts are manufactured in small and medium batches and are often remanufactured periodically, then a CNC milling machine is appropriate. Because the tools and programs used in the first production can be stored and reused. In the long run, it is inevitable that automatic milling machines will replace regular ones, reducing the labor force and increasing productivity.

Ningbo Hewcho Industrial is a professional china cnc machining parts manufacturer, we provide cnc machining parts china, cold forging parts and etc. Want to know more? Please contact us.

CNC Cutting Service(2021年08月30日)

hewcho — 2021-08-30T15:54:31+0900

http://www.hewcho.com/service/cnc-cutting-service.html

The commonly used CNC cutting services are mainly divided into flame cutting services and plasma cutting services, each of which has its own advantages. What is the main difference?

Flame CNC cutting service

Principle of CNC cutting service
Flame cutting is the oldest form of thermal cutting. It raises the temperature of the flame through the combination of gas and oxygen. When the temperature is beyond the point of ignition or melting of the metal, cutting can be achieved. The process is accompanied by melting.
Oxygen CNC cutting service
CNC flame cutting is also called flame gas cutting. After preheating the cutting place of the workpiece to a certain temperature by the heat energy of the gas flame, the cutting flow is ejected at a high speed to make it burn and give off heat. Then cutting can be achieved.
Plasma CNC cutting service
1.Working principle of Plasma CNC cutting service
The plasma equipment we use now is mainly air plasma. It is composed of electric control system and nozzle. The electric control system produces an arc which is compressed by compressed air and ejected from the nozzle.
3.Scope of application of CNC cutting service
Numerical control plasma device can cut stainless steel, copper, aluminum and other non-ferrous metals, more wide application range. Its cutting speed is fast, thermal deformation is small, cutting surface bright and clean, which all can improve production efficiency. Therefore, it has been widely used in recent years.
Daily use and maintenance
Numerical control plasma equipment has very high requirements on electricity and gas. If air cutting is used, the plasma equipment must be equipped with a filter device to exclude water, oil and impurities in the air compressor. What’s more, the plasma equipment is with a detection function.
The plasma equipment in use today is basically equipped with a cooling system. The equipment is equipped with water tank, and the cooling water should be added regularly. If it exceeds -30c in winter, propylene glycol should be added to prevent freezing.

Keep an eye on the wear and tear of the vulnerable parts. Its loss can be judged by listening, seeing and using frequency. During cutting, if the sound is particularly harsh and the cutting surface quality drops, it is time to replace the wearing parts. The vulnerable parts on the cutting saw body are mainly composed of electrode, nozzle, protective cap, vortex ring and fixed cover. There is a difference between domestic consumables and imported consumables. Although the price of domestic consumables is cheap (the price of imported consumables is twice that of domestic consumables), the economic effect of imported consumables is more than four times that of domestic consumables (calculated by actual comparison).

In daily work, it is necessary to check whether the grounding line is well connected, and clean the plasma power regularly to avoid poor heat dissipation and affect the performance of the plasma equipment.

To sum up, the advantages and disadvantages of CNC flame cutting service and CNC plasma cutting service are obvious. The CNC flame cutting service is suitable for thick plate cutting, with smooth cutting surface and vertical degree guaranteed. While the CNC plasma cutting service is mainly applicable to thin plate cutting and special plate cutting. CNC plasma cutting service has small thermal deformation and fast cutting speed. In the ordinary production process, we can make up for our deficiencies by drawing on each other's strengths to improve production efficiency and ensure the quality of cutting.

Ningbo Hewcho Industrial is a professional cnc parts manufacturer, we provide cnc machining parts china, custom cnc aluminum parts and etc. Want to know more? Please contact us.

ALUMINUM CNC MILLING SERVICE(2021年06月16日)

hewcho — 2021-06-10T10:56:17+0900

http://www.hewcho.com/service/aluminum-cnc-milling-service.html

Aluminum CNC milling service is one of the numerical control services, which is widely used in the machinery manufacturing, mold processing and so on. Based on the ordinary milling service and combined with the characteristics of the numerical control machine tool, aluminum CNC milling service can complete not only the ordinary milling service, but also those are difficult for the ordinary milling service. Aluminum CNC milling service equipment mainly consists of CNC milling machine and machining center, which can be used for planar contour milling and curved surface contour machining, as well as drilling, expansion, grinding, boring, panting and thread machining.

There must be CNC milling machine in the Aluminum CNC milling service. CNC machining center is a machine tool that adopts CNC technology. To be specific, the aluminum CNC milling service information such as cutter's moving track is recorded on the program medium with digital code, and then the data is transferred to the numerical control system. After decoding, calculation and issuing instructions, the relative motion between the cutter and aluminum parts on the machine tool is automatically controlled. Then parts with the required shape, size and precision are produced. Cheap CNC milling service is a good way to manufacturing workpieces

Nowadays, the cheap CNC milling service is very popular. Many kinds of CNC machine tools have been widely used in the manufacturing industry, among which the most used machine tools are CNC machining center and CNC lathe. In addition, there are EDM(electrical processing) machine tools, special machine tools.

Cheap CNC milling service won good reputation for its high precision and low price. May manufactures adopt this way to process their products. CNC milling machine, as a necessary factor in the aluminum CNC milling service, has developed quickly. The description of CNC milling machine is quite extensive, and can even be written in a thick book. All types of milling machines, from regular milling machines to five-axis copying milling machines, can be included in its catalog. These milling machines are diverse in size, characteristics, and suitability, but they all share a common feature, that is, the main axis is the X axis and the Y axis, hence known as the XY machine tool.

XY machine tools also include electric machine tools, laser and high-pressure water cutting machines, flame cutting machines, gas cutting machines, planer, etc. They serve a different purpose from milling machines, but most of the programming techniques available for milling machines can also be applied to these machines. The best example is contour machining, a common process for many machine tools.

A milling machine used in the aluminum CNC service can be defined as follows
The milling machine is a machine tool which USES milling cutter as the main cutting tool and can cut along at least two axes at the same time. Users of these machines can benefit from topics presented here, and the general principles apply to most CNC machines. For example, electrical machine tools adopt small tool diameters in the form of wire. Laser cutting machines use a laser beam as a cutter, which also has a definite diameter, generally replaced by the term "slit". Although milling cutters are used in many ways, they are preferred for all types of milling machines.

Ningbo Hewcho Industrial is a professional stamping parts manufacturer. We provide CNC Machining Parts, CNC Turning Parts, cnc machined components and so on. Want to know more? Please contact us.

ELECTRONICS INDUSTRY(2021年06月15日)

hewcho — 2021-06-10T10:55:46+0900

http://www.hewcho.com/gallery/electronics-industry/

Electronic industry is development and production of electronic equipment and various electronic components, devices, apparatus, instruments, industry, which is a combination of military and civil industry. It is composed of broadcasting and television equipment, communication and navigation equipment, radar equipment, electronic computer, electronic components, electronic instruments and other special electronic equipment.

Our company has high precision CNC lathe and many years production experience, we can produce electronic components including copper, aluminum, stainless steel, carbon steel and alloy. Therefore, accuracy of products can reach 0.01 mm, which is very important for electronic components.

As a manufacturer of metal precision electronic components, Ningbo Hewcho Industrial can customize unique electronic component solutions for you, including product materials, manufacturing processes, surface treatment, packaging solutions. Our manufacturing process adheres to ISO9001 quality system, regardless of customer's component size, we will strictly control quality of products to ensure that each product meets customer requirements.

Management characteristics
Rapid technological progress: since the production of electronic tubes in 1916,the radio industry has gone through the stages of electronic tubes, transistors, integrated circuits, large-scale and very large scale integration. Since the first electronic computer came out in 1946, computer technology has made rapid progress and is developing towards the direction of giant, micro, intelligent and network.

Wide range of application: electronic industrial products have entered to various fields if the national economy and people's living standards. Knowledge, technology and capital are intensive; High value-added products, good economic benefits; it has broken through the scope of manufacturing, forming software, services, information and other emerging industries; many countries put the development of electronic industry in a prominent position as a leading industry.

Product characteristics
1.The product belongs to the knowledge, the technology intensive product, with high content of the science and technology.
2. It is generally for automatic production line production with high automation production level.
3. The variety and model of product parts are complex, self-made and outsourced are equally important.
4. Fierce product competition, rapid upgrading, high investment in R & D of the products.
5.The products focus on energy conservation and environmental protection and are in line with international standards.

Characteristics of production management
Process production is a complete process of continuous processing and assembly of products from raw materials into parts and components assembly into products. This kind of process type of product production is widely adopted by many industries, such as electronics industry, machinery industry and chemical industry and so on.

Electronic components：
Mounting hardware
Protective enclosures
Radio components
Adapters and couplings
Audio components
Custom tools

Welcome to order custom machined parts from HEWCHO!

Ningbo Hewcho Industrial is a professional china cnc machining parts manufacturer. We provide CNC Machining Parts, CNC Turning Parts, cnc machining services china, hydraulic cylinder rod and so on. Want to buy cheap electronic parts? Please contact us.

AUTOMOBILE SPARE PARTS(2021年06月14日)

hewcho — 2021-06-10T10:55:16+0900

http://www.hewcho.com/gallery/automobile-spare-parts/

AUTOMOBILE SPARE PARTS

Auto spare machining parts is main product that constitutes whole processing of auto parts and serves for processing of auto parts.

With increasingly fierce competition in auto parts processing market, popular idea of environmental protection, and continuous upgrading and application of technology, as main products of auto spare parts industry, precision cnc machined parts have shown following characteristics in recent years:

①Trend of supporting and modularized supply of machining auto spare parts processing system is in ascendant
②Globalization of machining auto spare parts processing and purchasing
③Speed up transfer of machining auto spare parts processing Industry

Enterprise reorganization
The major automobile companies in the world have reformed the supply system and implemented global production and global procurement, that is, transforming the mode of purchasing from a number of auto parts manufacturers to a small number of system suppliers; from single auto parts procurement to module procurement; from domestic procurement to global procurement. The transformation of the purchasing system of automobile manufacturers requires auto parts manufacturers to constantly adapt to it. It not only requires auto parts manufacturing enterprises to expand their own strength and improve their product development capabilities, but also to achieve system development and system supply. At the same time, it also requires to shorten the development cycle and provide quality and cheap products. This reform has promoted the process of merger and acquisition and reorganization of automobile parts industry all over the world.

Technological progress
Major automobile parts manufacturers have applied aerospace, aviation and electronics technologies to automotive parts and assemblies, and safety, electronic, energy-saving and environmental protection technologies have been widely used in automobiles. Especially, the new technology, represented by electronic information technology, is not only widely used in automobile products, but also has extended to many aspects, such as development, design, trial manufacture, production and management. It has been applied not only to single automobile parts, but also to system assembly.

Parts and components enterprises set up research and development center, can “quickly” develop products, meeting the urgent needs of the market; it can “accurately” achieve “localization”, close to the market; it can also apply “new” technology into production, that is, ensuring quality and reducing costs. In fact, some of the new technologies of parts companies are leading the car factory.

Globalization
In order to reduce the cost and occupy the market, many automobile parts multinational companies have developed to internationalization. European auto parts manufacturing enterprises have invested overseas to carry out international production; North American auto parts manufacturers have invested in Europe, but also want to expand the Eastern European market; Japanese auto companies are also constantly setting up their own branches around the world. The emerging Asian market is the focus of the competition among the major automobile parts multinational companies, and China is even more important.

Ningbo Hewcho Industrial is a professional turned parts manufacturer. We provide CNC Machining Parts, CNC Turning Parts, cnc machining parts china and so on. Want to know more? Please contact us.

WHAT ARE THE MAIN CNC MILLING MACHINE PARTS AND COMPONENTS?(2021年06月13日)

hewcho — 2021-06-10T10:54:47+0900

http://www.hewcho.com/blog/what-are-the-main-cnc-milling-machine-parts-and-co.html

The main parts of CNC milling machine include shaft, worktable, spindle, frame, NC controller and other accessories, while accessories include coolant, lubrication system, power tie rod, housing and fourth axis. Next we will introduce it in detail.

The rack is located on the ground or foundation of the CNC milling machine. It acts both a support and a damper for machine vibration. The frame material may be granite-filled welded structure. Almost no steel is generally used as a milling frame, because it has some spring properties and very little damping capacity. There is another innovative idea, which is to use epoxy resin with different sizes of stone in welded steel containers. The epoxy granite mixture is a good damper, and the strength increases when it is confined to steel vessels. Install foundation bolts on the frame so that they are rigidly connected to the ground.

The CNC milling machine is connected to the frame to provide movement in each direction. Since the machine is controlled by a computer, it is programmed. It can also be done manually. A normal CNC is called a 3-axis CNC. And can move in three directions. The components which are connected to the CNC shaft include motors, various modes, worktables, limit switches and lead screws. Typically, shafts move in the XY and Z directions, but sometimes an optional 4th axis is required, and it is kept in the attachment list. Five axis milling is also visible, but not very common. The motor can offer motion for the table in a way that provides smooth sliding motion. Swallowtail and straight line are often used in shaft assembly. The lead screw provides linear motion when extracting the rotating motion of the motor.

The table is usually located at the top of the saddle. The T slot is used to store objects such as work pieces and fixtures. In CNC milling operations, the motor will move the worktable and get the signal from the program code.

The spindle is a rotary tool holder. These tools are mounted in the conical part of the spindle. The spindle has RPMS in different sizes. Spindle speed may be changed. The spindle speed can be set up according to the characteristics required by the materials needed. Spindles are mainly divided into three types: the spindle of the bullet, the spindle and the spindle.

The CNC controller in the CNC milling machine sends signals to the motor in the machine tool and moves on the CNC axis. Electronic control works as the main part of the machine and executes electrical and electronic equipment as input code.

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Ningbo Hewcho Industrial is a professional china cnc machining parts manufacturer. We provide CNC Machining Parts, CNC Turning Parts, china machining, cnc milling machine parts components, cnc milling components, cnc mechanical parts, cnc milling parts, milling parts, cold forging parts and so on. Want to know about cnc machine spare parts list and cnc machine parts list? Please contact us.

STAINLESS STEEL TURNING PARTS 1(2021年06月12日)

hewcho — 2021-06-10T10:54:00+0900

http://www.hewcho.com/blog/stainless-steel-turning-parts-1.html

A stainless steel part is a part that is processed by a lathe on a lathe. The shape and size of the blank are changed by the rotary motion of the workpiece and the linear motion or curved motion of the cutter, and it is processed to meet the requirements of the drawings. Custom stainless steel parts machining is a method of machining a workpiece on a lathe by turning it relative to the tool. The cutting power of turning can be provided primarily by the workpiece rather than the cutter. Turning is the most basic and common machining method, which plays a very important role in the production. Turning is suitable for machining rotary surfaces. Most workpieces with rotary surfaces can be machined by turning, such as inner and outer cylindrical surfaces, inner and outer conical surfaces, end faces, grooves, threads and rotary forming surfaces. The tools used are mainly turning tools. The precision of turning to the machine is generally IT11-IT7, and some can reach IT6, and the surface roughness can reach 12.5-08um. Parts that are turned from turning are called turning parts, and there are many types of turning parts, which are known for their hard turning to maintain the thermal stability of parts.
Stainless steel turned parts processing steps
Before operation
1.Before work, use protective equipment strictly according to the regulations and tie up the sleeves. Do not wear scarves or gloves. The operator must stand on the pedal.

2. For all parts of bolts, travel limit, signal, safety protection (insurance) device and mechanical transmission parts, electrical parts, each lubrication point is strictly checked and then determined to be reliable before starting.

3. The safety voltage and voltage of all kinds of machine tool lighting applications should not exceed 36 volts.

In operation
1. Tools, clamps, cutter, and workpieces must be securely clamped. All kinds of machine tools should be idling at low speed after driving. After everything is normal, they can be officially operated.

2. Tools and other things shall not be placed on the rail and working table of machine tools. Don't remove iron dust by hand. Use special tools to clean it.

3. Before the machine is started, observe the surrounding dynamics. After the machine is started, it should stand in a safe position to avoid the moving parts of the machine and the iron splash.

4. During the operation of various types of machine tools, it is not allowed to adjust the shifting mechanism or stroke. Do not touch the working parts of the transmission part, moving workpieces, tools, etc. in the hand. It is not allowed to measure any size during operation. Do not transfer or take tools or other items through the driving part of the machine tool.

5. If abnormal noise is found, it should be stopped and repaired immediately. It must not be forced or sick, and the machine tool is not allowed to be overloaded.

6. Strictly execute the process discipline of each machine part in the process, read the drawings, read the control points, roughness and the technical requirements of related parts of each part, and determine the manufacturing process of the parts.

7. Adjust the machine speed, stroke, clamping workpieces and cutters, and stop when wiping the machine. It is not allowed to leave the job while the machine is running, so it is necessary to stop and cut off the power when leaving.

After operation
1. The raw materials to be processed and the finished products, semi-finished products and scraps must be stacked at the designated place. All tools and tools must be kept intact and good.

2. After the operation, the power must be cut off, the tool must be removed, and the handles of each part should be placed in the neutral position to lock the switch box.

3. Clean the equipment, clean the iron filings, and lubricate the rails to prevent corrosion.

The stainless steel turned parts processing procedure is one of the technical documents that stipulate the machining process and operation method of the parts. It is to write the reasonable process and operation method into the process document in the specific production conditions and use it to guide the production after approval. Generally, the process procedure of turning part includes the following contents: the process route of workpiece processing, the specific content of each process and the equipment and process equipment used, the inspection items and methods of workpiece inspection, cutting amount, time quota, etc.

Ningbo Hewcho Industrial is a professional china cnc machining parts manufacturer. We provide CNC Machining Parts, CNC Turning Parts, stainless steel turned components, cold forging parts and so on. Want to know more? Please contact us.

SHAFT MACHINING(2021年06月11日)

hewcho — 2021-06-10T10:53:30+0900

http://www.hewcho.com/blog/shaft-machining.html

Shaft parts are one of the typical parts in machining. Shaft parts are revolving parts whose length is larger than diameter, and its surface mainly consists of several cylindrical surfaces, conical surfaces, holes and threads. It's a little complicated, but do not worry about it. Let's talk about "shaft" together today.

The spindle of a machine tool is a typical shaft part, and it is one of the key parts of a machine tool. It transfers the furniture which is at the end of the spindle to the workpiece or tool by means of swirling motion and torque. Therefore, the spindle requires torque and bending moments during operation, and it also requires a high precision of rotation. Therefore, the manufacturing quality of the spindle will directly affect the working accuracy and service life of the entire machine.

A series of technical requirements are specified in the spindle part drawing, such as dimensional accuracy, shape and position tolerances, surface roughness, contact accuracy and heat treatment. All these are to ensure that the spindle has a high rotation accuracy and rigidity, good abrasion performance and dimensional stability.

The following describes the functions and technical requirements of the main parts of the spindle:

(1): Bearing journal: The roundness tolerance of the two bearing journals A and B is 0.005 mm and the radial runout tolerance of A and B is 0.005 mm; The contact ratio of the bearing journals 1∶12 conical surface is ≥ 70%, the surface roughness Ra is 0.4 mm, and the dimension accuracy of bearing journals is IT5. Since the bearing journals of principal axis is used to install block bearing, it is the assembly datum of the main shaft parts, so its manufacturing precision directly affects the rotary precision of the spindle.

(2): The precision of the working surface of the spindle: The working surface of the main shaft refers to the centering surface of the clamping props or furniture, such as the Morse hole, the outer end of the shaft end or the outer circle of the flange. And the demands for them are: The dimensional accuracy, geometric accuracy and contact accuracy of the inner and outer tapered surfaces, the concentricity of the centering surface on the bearing journal, the perpendicularity of the positioning end surface to the neck axis, etc. Their influence on the accuracy of machine tools will cause the clamping error in the furniture or workpiece. The radial runout of the near-spindle end and the radial round jump at 300 mm from the end face are also stipulated in the spindle technical requirements. In addition, in order to ensure good contact between the cone hole and the top cone handle, the contact area shall be verified by coloring method using a standard taper plug gauge.

(3): The accuracy of the secondary shaft neck and other surfaces: The minor axis of a spindle refers to the surface of parts such as gears and bushings. The rank of their dimensional tolerances is generally IT7, and their roundness tolerance is 0.01mm. The thread on the spindle is usually used to fix parts or adjust the bearing clearance. When adjusting the ending beat of the nut, it will cause the bearing ring to be tilted, so that the radial runout of the spindle will increase. This will not only affect the machining accuracy of the workpiece, but also reduce the service life of the bearing. The grade of tolerance of the spindle thread is generally 6g grade. The coaxiality tolerance of the main journal is not more than 0.025~0.05mm, the relative end faces of the nut is less than 0.025mm on the 500mm radius.

(4): The roughness of each surface of the spindle: The roughness requirements for each surface of the spindle of different precision machine tools are as shown in the standard.

(5): Hardness of each surface of the spindle: The journal surfaces, working surfaces and other sliding surfaces of the spindle are subject to varying degrees of friction. When sliding bearing, the journal and the bearing bush are rubbed, and the wear resistance of the journal surface is required to be high, and the hardness may vary depending on its material. For example, the hardness of the tin bronze surface should be greater than 60HRC. When using steel sleeve bearings, the surface hardness of the journal should be higher. If the spindle of the boring machine is nitriding on the surface, its hardness is greater than 900HV. When rolling bearings, friction is jointly borne by bearing rings and rolling elements. Therefore, the journal should not have high wear resistance, but it is still required to improve its hardness, so as to improve its assembly process and assembly accuracy. The hardness of the surface of the journal is generally 40~50HRC.

For the centering surface, because the accessories and the chuck are often removed, it is easy to bruise and affect the contact accuracy. So it must have a certain wear resistance. In order to improve the phenomenon of surface pulling and prolong the term of the machine tool which has high precision, the hardness of the centering surface is generally required to be higher than 45HRC.

The main shaft material usually selects 45Ta, 65Mn, 40Cr and other grades of steel. The hardenability of 65Mn and 40Cr is better. High mechanical property and wear resistance can be obtained after quenching and tempering. When the spindle is required to work at high precision, high speed and heavy load, 18CrMNTi, 20Cr, 20Mn2B and other low carbon alloy steels can be selected. After carbonizing and quenching, the quenching surface has compressive stress, which can improve the fatigue resistance, but the process of heat treatment is poor and the possibility of deformation is greater. The precision spindle can selected 38CrMoAL nitriding steel, its surface hardness and fatigue resistance are higher. And the nitriding layer also has many advantages, such as corrosion resistance and small deformation during heat treatment.

The hairy embryo of the spindle always use forgings. Free forging is often used when the production batch is small, and the required equipment is simple, but the accuracy of blank is poor, and the allowance should be more than 10mm; Die forging can be used to forge more complicated blanks with less machining allowance. And it is beneficial to reduce the amount of machining labor. So it is widely used in batch production. Precision drop forging is an advanced technology in forging production. It can forge blanks with complex shapes and high precision. In addition, spindle blanks of multi spindle automatic lathe with gathering stock of seamless steel tubes are also adopted.

Learn more about shaft machining here!

Ningbo Hewcho Industrial is a professional cnc parts manufacturer. We provide CNC Machining Parts, CNC Turning Parts, custom cnc aluminum parts and so on. Want to know more? Please contact us.

AN INTRODUCTION TO THE HYDRAULIC CYLINDER SPARE PARTS MATERIAL(2021年06月10日)

hewcho — 2021-06-10T10:52:54+0900

http://www.hewcho.com/blog/introduction-hydraulic-cylinder-spare-parts-material.html

An introduction to the hydraulic cylinder spare parts material Engineering hydraulic cylinder, with its simple structure, strong process adaptability and small environmental pollution, has become one of the most important irreplaceable devices in the field of transmission. It is widely used in various fields of national economy, such as automobile manufacturing, aerospace, national defense, power electronics, plastics, machinery, metallurgy and light industry. Engineering hydraulic cylinder is mainly composed of cylinder block, piston, piston rod and other auxiliary parts. Not only is the structure of each part carefully designed, but also their materials are specially selected to meet the characteristics of the hydraulic cylinder. When choosing the material of the cylinder block, we should also consider the system where the hydraulic cylinder is located. If the hydraulic cylinder in the machine tool is used, the material of the cylinder block is mostly made of high strength cast iron. When the pressure exceeds 8 MPa, it is suggested to replace it with seamless steel pipe.

For hydraulic cylinders equipped in construction machinery, 35 steel and 45 steel seamless steel tubes are usually used as cylinder materials. When the pressure is high, 27SiMn seamless steel tubes or 45 steel can be used to forge, which is enough to cope with high-strength pressure. Secondly, the material of piston in hydraulic cylinder is related to its structure. Generally, the integral piston is made of 35 steel and 45 steel, while the assembled piston is made of gray cast iron, wear-resistant cast iron and aluminium alloy. Bronze, brass and nylon wear-resistant sleeves can be installed outside the steel piston blank for special needs. In a hydraulic cylinder, the piston and the supporting piston rod work together, so the material of the piston rod is similar to that of the piston, generally 35 and 45 steel. Alloy materials such as 55 steel or 40Cr are used only when the impact vibration of hydraulic cylinder is very large.

Ningbo Hewcho Industrial is one of professional cnc machine parts suppliers. We provide CNC Machining Parts, CNC Turning Parts, custom cnc aluminum parts and so on. Want to know more? Please contact us.

CNC ENGINEERING SERVICES(2021年)

hewcho — 2021-04-22T15:23:20+0900

http://www.hewcho.com/product/metal-stamping-parts/

CNC Numerical Control milling machine in the CNC engineering services is controlled by digitizing signals with an electronic meter.

Ningbo Hewcho Industrial is a professional turned parts manufacturer. We provide CNC Machining Parts, CNC Turning Parts, cnc machining services china, cold forging parts, hydraulic rod, metal stamping parts china and so on. Want to know more? Please contact us.

CNC CUTTING SERVICE(2021年)

hewcho — 2021-04-22T15:22:30+0900

http://www.hewcho.com/product/cold-forging-rivets.html

The commonly used CNC cutting services are mainly divided into flame cutting services and plasma cutting services, each of which has its own advantages. What is the main difference?

Flame CNC cutting service

Ningbo Hewcho Industrial is a professional turned parts manufacturer. We provide CNC Machining Parts, CNC Turning Parts, china machining, precision metal stamping parts, metal bracket with holes, cold forged rivets and so on. Want to know more? Please contact us.

ALUMINUM CNC SERVICE(2021年)

hewcho — 2021-04-22T15:21:58+0900

http://www.hewcho.com/product/cold-forging-rivets.html

With the development of building doors and Windows, curtain walls, vehicles, ships and automation equipment, aluminum machining service center has gradually developed into an independent processing center. According to the characteristics of aluminum, aluminum cnc service center has the ability of milling groove, drilling, tapping, etc. And the function of milling plane/surface, spot facing, bore a hole and so on is rarely used in aluminum machining service. Due to the characteristics of the processing objects, the design of aluminum machining service center is very different from the general processing service center from structural layout, technical parameters to numerical control system.

The aluminum beam and frame aluminum of general equipment all need deep processing before being used. They need to saw, punch, tap, mill, and so on. There are general processing services and CNC process services in domestic aluminum machining service. Select the machine according the precision of aluminum parts and aluminum alloy.
Notice of aluminum CNC service

1.In aluminum cnc service, the speed of white steel knife should not be too fast.
2.When the workpiece is too high, it should be separated by different lengths.
3.After separating it with a large knife, remove the remaining material with a small knife to ensure that the remaining amount is consistent.
4.The surface should be machined with flat bottom knife and less ball knife so as to reduce machining time.
7.The four corners of the table should be flat.
8.Working with a bevel cutter where the slope is an integer, such as a tube bit.
9.Be careful in aluminum cnc service. Before each process, figure out the remaining amount so as to avoid cutting with empty or excessive machining.
10.Take a simple knife path as far as possible, such as shape, grooving, one side, and less surrounding height.
11.In the rough process of aluminum cnc service, don't complicate simple problems.
12.The staff in aluminum cnc service should first do rough machining, then the fine machining when using laser to beautify workpieces’ shapes
13. Set tolerances reasonably to balance machining accuracy and computer computing time in aluminum machining service. When opening, the tolerance is set to 1/5 of the margin, and when using light knife, the tolerance is set to 0.01.
14. Do more work to reduce the idle time in aluminum cnc service. Think more and make fewer mistakes. Draw more auxiliary line and surface to improve the processing.
15. Be responsible. Carefully check each parameter to avoid rework.
16. Diligent in learning, good at thinking and making continuous progress. Aluminum cnc service ask workers to think more and do the right choice. When milling uneven plan, use more ball knife, less end knife. Use the small knife in cleaning the horn, the big knife in refined repairing. Do not be afraid of filling, filling can improve the processing speed and beautify the workpiece.
17. In aluminum cnc service, different material should be dealt in different ways.
Blank material with high hardness: up milling is better.
Raw material with low hardness: climb cutting is better
Machine with high accuracy, rigidness, fine machining: more suitable for climb cutting. reverse more adaptive to reverse milling. It is strongly recommended to use down milling to finish machining the inner corner of the part.
Rough processing services: up milling is better. Finishing services: climb cutting is better.
Good toughness and low hardness of tool materials: more suitable for rough machining (large machining)
Poor toughness and high hardness of tool materials: more suitable for finishing (small cutting)

Ningbo Hewcho Industrial is a professional cnc machining parts manufacturer. We provide CNC Machining Parts, CNC Turning Parts, cnc machining parts china, hydraulic cylinder rod, cnc precision turning components, cold forged components, iron rivets for sale and so on. Want to know more? Please contact us.

ALUMINUM CNC MILLING SERVICE(2021年)

hewcho — 2021-04-22T15:21:16+0900

http://www.hewcho.com/product/cold-forging-pins.html

Ningbo Hewcho Industrial is a professional china cnc machining parts manufacturer. We provide CNC Machining Parts, CNC Turning Parts, cold forging parts, flange parts, carbon steel components, precision cold forge and so on. Want to know more? Please contact us.

STAINLESS STEEL CNC MACHINING SERVICE(2021年)

hewcho — 2021-04-22T15:20:42+0900

http://www.hewcho.com/product/cold-forging-bolts.html

Stainless steel CNC machining service materials

Turning the easiest

Drilling stainless steel materials

dry milling

Ningbo Hewcho Industrial is a professional cnc parts manufacturer. We provide CNC Machining Parts, CNC Turning Parts, custom cnc aluminum parts, high precision machined parts, hydraulic cylinder rod, cold forging bolts and so on. Want to know more? Please contact us.

PRECISION BRASS SERVICES(2021年)

hewcho — 2021-04-22T15:20:12+0900

http://www.hewcho.com/product/metal-sheet-stamping-brackets.html

The processing of precision brass services

Among other things, the brass processing is possible in the following way:
mill
Rotate
Drill
To bend
To cut
Due to the material properties of brass, it is generally ideal for machining .

Precision brass services materials

Ningbo Hewcho Industrial is a professional stamping parts manufacturer. We provide CNC Machining Parts, CNC Turning Parts, cnc machined components, hydraulic brake fittings, hydraulic cylinder piston rod, custom metal brackets and so on. Want to know more? Please contact us.

CNC CUTTING SERVICE(2020年08月20日)

hewcho — 2020-08-14T17:52:44+0900

http://www.hewcho.com/service/cnc-cutting-service.html

The commonly used CNC cutting services are mainly divided into flame cutting services and plasma cutting services, each of which has its own advantages. What is the main difference?

Flame CNC cutting service

Oxygen CNC cutting service
CNC flame cutting is also called flame gas cutting. After preheating the cutting place of the workpiece to a certain temperature by the heat energy of the gas flame, the cutting flow is ejected at a high speed to make it burn and give off heat. Then cutting can be achieved.
Plasma CNC cutting service
1.Working principle of Plasma CNC cutting service
The plasma equipment we use now is mainly air plasma. It is composed of electric control system and nozzle. The electric control system produces an arc which is compressed by compressed air and ejected from the nozzle.
3.Scope of application of CNC cutting service
Numerical control plasma device can cut stainless steel, copper, aluminum and other non-ferrous metals, more wide application range. Its cutting speed is fast, thermal deformation is small, cutting surface bright and clean, which all can improve production efficiency. Therefore, it has been widely used in recent years.

Daily use and maintenance
Numerical control plasma equipment has very high requirements on electricity and gas. If air cutting is used, the plasma equipment must be equipped with a filter device to exclude water, oil and impurities in the air compressor. What’s more, the plasma equipment is with a detection function.
The plasma equipment in use today is basically equipped with a cooling system. The equipment is equipped with water tank, and the cooling water should be added regularly. If it exceeds -30c in winter, propylene glycol should be added to prevent freezing.

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CNC ENGINEERING SERVICES(2020年08月19日)

hewcho — 2020-08-14T17:52:15+0900

http://www.hewcho.com/service/cnc-engineering-services.html

CNC Numerical Control milling machine in the CNC engineering services is controlled by digitizing signals with an electronic meter.

Functional features of CNC engineering services
In addition to the characteristics of ordinary milling machine, CNC milling also has the following characteristics:
CNC engineering services are with good adaptability and flexibility of parts processing. It is able to process parts with complex contour shape or difficult to control size, such as mold parts and shell parts;
CNC engineering services can process parts that cannot be processed or difficult to be processed by ordinary machine tools, such as complex curved parts described by mathematical models and three-dimensional curved parts;
CNC engineering services are able to process parts that need to be processed in multiple processes after the first clamping and positioning;
CNC engineering services have high machining accuracy, stable and reliable machining quality. The pulse equivalent of the numerical control device is generally 0.001mm, and the high-precision numerical control system can reach 0.1μm. In addition, the numerical control machining also avoids the operating error of operators.
CNC engineering services' high degree of production automation can reduce the labor intensity of operators. It is beneficial to the automation of production management.
CNC engineering services have high production efficiency. Generally, the CNC milling machine does not need to use special process equipment such as special fixture. When the workpiece is replaced, workers need only the machining procedure, clamping tools and tool data stored in the numerical control device. The production cycle can be shortened at a large extent. Secondly, the numerical control milling machine has the function of milling machine, boring machine and drilling machine. The process is highly concentrated and the production efficiency is greatly improved. In addition, the spindle speed and feed speed of the CNC milling machine are infinitely variable, so it is helpful to select the optimal cutting amount.
Processing characteristics of CNC engineering services
If the processing position is frame plane and not in the same equal altitude, point position - straight line system CNC milling machine is the best choice. If the machining position is a curved contour, the system of two-coordinate linkage and three-coordinate linkage should be selected according to the geometric shape of the curved surface. According to the requirements of parts processing, staff can add a numerical control dividing head or a numerical control rotary table on the basis of the general numerical control milling machine. At this time the machine tool system is the four coordinates numerical control system, which can process the spiral groove, the blade part and so on.

Size
The CNC milling machine with lifting table of smaller specification, whose table width is less than 400mm, is most suitable for the processing of small and medium parts and the contour milling of complex surface. Larger milling machines, such as gantry milling machines, have workstations of 500-600mm or more and can be used to process large and complex parts.

Precision
CNC engineering services have developed well in our country. The precision standard of CNC milling machine has been established in our country. What’s more, CNC vertical milling machine and lifting table milling machine have professional standards. According to the standard, the positioning accuracy of the linear motion coordinate is 0.04/300mm, the repeated positioning accuracy is 0.025mm, and the milling circle precision is 0.035mm. In fact, the machine tool factory precision has a considerable amount of storage, compared to the national standard tolerance value of about 20% compression. Therefore, from the point of precision selection, the general CNC milling machine can meet the processing needs of most parts. For the parts with high precision, the precision CNC milling machine should be considered.

Batch
For bulk parts processing, users can use a special milling machine. If the parts are manufactured in small and medium batches and are often remanufactured periodically, then a CNC milling machine is appropriate. Because the tools and programs used in the first production can be stored and reused. In the long run, it is inevitable that automatic milling machines will replace regular ones, reducing the labor force and increasing productivity.

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FORGE SERVICES(2020年08月18日)

hewcho — 2020-08-14T17:51:15+0900

http://www.hewcho.com/service/forge-services.html

Deformation temperature

Forging categories

4. Special forging. Special forging includes forging methods like roll forging, cross wedge rolling, radial forging and liquid die forging. These methods are suitable for the production of some certain special shape parts. For example, roll forging can be used as an effective preforming process, which significantly reduces the subsequent forming pressure; cross wedge rolling can produce parts like steel ball and shaft; and radial forging can produce forgeable piece like large barrel and step shaft.

Forging features

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PRECISION BRASS SERVICES(2020年08月17日)

hewcho — 2020-08-14T17:50:53+0900

http://www.hewcho.com/service/precision-brass-services.html

The processing of precision brass services

Among other things, the brass processing is possible in the following way:
mill
Rotate
Drill
To bend
To cut
Due to the material properties of brass, it is generally ideal for machining .

Precision brass services materials

Our company provide china cnc precision machining,the company gathers lots of R&D talents and international standard Management

STAINLESS STEEL CNC MACHINING SERVICE(2020年08月16日)

hewcho — 2020-08-14T17:50:30+0900

http://www.hewcho.com/service/stainless-steel-cnc-machining-service.html

Stainless steel CNC machining service materials

Turning the easiest

Drilling stainless steel materials

dry milling

We provide stainless steel machining china,stainless steel cnc machining services and precision turned parts china,RFQ today.

TURNING SERVICE(2020年08月15日)

hewcho — 2020-08-14T17:50:08+0900

http://www.hewcho.com/service/turning-service.html

CNC turning china is one of machining process. Same as other machining processed, during the cutting, part of the initial material is removed. The machinery that carry out this process is called turning machine or lathe.

What are CNC turned parts?

Turned parts are important functional components for products and can be found in many areas of today's era. Thus, with the introduction of CNC technology, the application possibilities of these turned components could be further extended. Whether the smallest micro parts for the watch industry or long turning parts for mechanical engineering, where something rotates or moves is usually a turning part behind it. Here, very hard materials such as titanium as well as soft materials such as plastic parts be machined with high process accuracy and cost-optimized, which is why the production of turned parts has become an integral part of production in many areas.

How is the production done?

Turning belongs to the group of separation processes and takes place on manual lathes or CNC controlled lathes. In this machining process, as opposed to milling, the workpiece rotates about its own axis, so the main cutting motion is performed by the rotating workpiece. In order to lift a chip while the tool is moved with a carriage along the rotating workpiece. Thanks to the latest developments in the field of lathe technology, complex filming can now be carried out, which was previously only possible on milling machines.

Which axes are available when turning?

The axis of rotation of the main spindle, around which the workpiece and the chuck rotate, is called the Z-axis when turning and runs from the chuck towards the tailstock. The X-axis is perpendicular to it. A Y-axis is not necessary during normal turning because the tool height above the XZ plane is fixed when setting up the lathe. In contrast, the angle of the main spindle is often displayed as a third coordinate on CNC-controlled lathes. The scale division on the X-axis doubles the actual movement when turning, as the movement of the tool affects the radius of the workpiece.

Advantage and Application
The advantages of turning

Turning has many advantages over other machining processes. The following advantages make this technology an important basic technology.

●High dimensional accuracy
●Consistent quality
●Great productivity
●An extensive variety of materials
●Low tool wearWhere turned parts are used

Turned parts find a variety of applications in today's industry. Wherever something turns or moves, often turned components are used :

●Electrical Appliance Industry
●Automotive Industry
●Electronics Industry
●Connection technology
●General Industry
●Machinery and equipment

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WHAT IS THE FUNCTION OF CNC MILLING MACHINE PARTS AND(2020年08月14日)

hewcho — 2020-08-14T17:49:42+0900

http://www.hewcho.com/what-is-the-function-of-cnc-milling-machine-parts-and-components.html

The following is a brief introduction of the role of cnc milling machine parts and milling components:
1. Bed
The reinforcing ribs inside the bed are arranged reasonably and have good rigidity. There are four adjusting bolts on the base to facilitate the adjustment of the machine tool. The cutting oil pool is set inside the bed.
2. Milling head
The milling head part is composed of two parts: a step gearbox and a milling head. The spindle of milling head is supported on high-precision bearing to ensure that the spindle has high rotation accuracy and good rigidity. The spindle is equipped with quick cluster cutter nut, adopting mechanical stepless speed change, wide adjustment range, stable transmission and convenient operation. The brake mechanism can make the spindle brake quickly and save the auxiliary time. When braking, open the stop ring through the brake handle to make the main shaft brake immediately. When starting the main motor, pay attention to release the spindle brake handle. The milling head part is also equipped with a servo motor, an internal toothed pulley, a ball screw pair and a main shaft sleeve, which form a vertical feeding transmission chain to make the main shaft move in a straight line in a vertical direction.
3. Worktable
The worktable and bed saddle are supported on the wide horizontal guide rail of the lifting table. The longitudinal feed of the worktable is driven by the servo motor installed on the right end of the worktable. The precision ball screw pair is driven by the internal toothed pulley, so that the worktable can obtain the longitudinal feed. The left end of the table is equipped with a hand wheel and a dial for manual feeding. The wear resistance, movement stability and accuracy retention of the guide rail are improved, and the phenomenon of low-speed crawling is eliminated.
4. Cross feed part
An AC servo motor is installed in front of the lifting table to drive the bed saddle to make a transverse feed motion, and its working principle is the same as that of the table. In addition, the front end of the transverse ball screw is also equipped with a feeding hand wheel, which can realize manual feeding.
5. Lifting table
A locking handle is arranged on the left side, and a long handle is arranged on the front end of the locking handle to drive the bevel gear and the screw of the lifting table to rotate, so as to obtain the lifting movement of the lifting table.
6. Cutting oil cooling system
The cooling part consists of cutting oil pump, oil outlet pipe, oil return pipe, switch and nozzle. The cutting oil pump is installed in the inner cavity of the machine tool base, which pumps the cutting oil from the oil storage pool in the base to the oil outlet pipe, and then ejects it through the nozzle to cool the cutting area. In the lubrication part, the motor-driven lubrication method is adopted. The main shaft sleeve, guide rail and ball screw are lubricated by the lubricating pump through the oil separator to improve the service life of the machine tool.

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