What Is Pressure Casting

(2023年09月05日)

https://www.fathomprecision.com/precision-tooling-service/

Introduction to Pressure Casting
Pressure casting is a casting method in which molten or semi-molten metal is pressed into the metal casting mold at high speed and crystallized under pressure, referred to as die casting.

Advantages Of Pressure Casting
1) High productivity, easy-to-achieve mechanization, and automation, can produce thin-walled castings with complex shapes. The minimum wall thickness of die-casting zinc alloy is only 0.3mm, the minimum wall thickness of die-casting aluminum alloy is about 0.5mm, and the minimum cast out hole diameter is 0.7mm.

2) High dimensional accuracy of castings, small surface roughness value. Die casting size tolerance grade up to CT3 ~ CT6, the surface roughness is generally Ra0.8 ~ 3.2μm.

3) Pressure casting parts can be embedded in the casting parts, not only to save valuable materials and machining hours, but also to replace the assembly process of the parts, can eliminate the assembly process, simplify the manufacturing process.

Application Of Pressure Casting
Due to the advantages of pressure casting, it is widely used, mainly in mass production of non-ferrous alloy castings. Pressure die casting applications are the most automobile, tractor manufacturing, followed by instrument manufacturing and electronic instrument industry, again for agricultural machinery, defense industry, computers, medical equipment and other manufacturing industries. The parts produced by die-casting method are engine cylinder block, cylinder head, transmission case, engine cover, instrumentation and camera shell and bracket, pipe fittings, gears, etc.. In recent years, high technology has been applied to the field of pressure casting. Such as the use of three-stage pressure injection mechanism to control the pressure, injection speed and gas in the mold. Development of special pressure casting process (such as vacuum die-casting, directional pressure casting, oxygen die-casting, etc.) and the application of computer control technology to effectively remove the pores, improve the density of the casting, while developing new mold materials and heat treatment of new technology to extend the life of the die, so that ferrous metal die-casting has made some progress.

Our prototype manufacturing company motto is that our customer's selection transform into our mission, and we are focusing on what we are good at. In the past years, our technical and management had never stopped improving, except our services are still kept the same from molding, custom cnc prototyping, to turnkey production.

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