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https://www.zdcpu.com/services/selective-laser-sintering-sls/

Selective Laser Sintering (SLS) is an industrial 3D printing process ideal for manufacturing end-use parts. In SLS 3d system, a laser selectively sinters polymer powder particles, fusing them together and building a part layer-by-layer. From SLS rapid prototyping to small-batch production, our SLS 3D printing facilities will allow you to produce highly accurate parts, with low cost and high quality comparable to injection molding.

SLS produces functional plastic parts with isotropic mechanical properties that can be used for detailed prototyping or end-use low-volume production.

Selective Laser Sintering
Guideline of Fused Deposition Modeling
Size of Selective Laser Sintering

Below table shows the size of Fused Deposition Modeling parts we usually make. If you need a larger size, we can also help you achieve it.

Standard capabilitiesDescription
Maximum build size *300 x 300 x 300 mm (11.8” x 11.8” x 11.8”)
Lead time *6 business days
Dimensional accuracy± 0.3% with a lower limit of ± 0.3 mm (± 0.012”)
Layer thickness100 μm

• For expedited lead times or parts that exceed the maximum build size contact sales@zdcpu.com.

Available Materials of Selective Laser Sintering

In addition to the general materials listed below, Zhongde can also modify the materials according to the special needs of customers. Our professional engineers will adjust the raw material formula to meet the unique conditions of use.

MaterialDescription
Nylon 12 (PA 12)SLS nylon is a robust thermoplastic with all-around excellent physical properties, ideal for functional prototypes and end-use applications.
Glass-filled Nylon (PA 12 GF)Glass-filled SLS nylon is reinforced with glass beads creating parts with higher stiffness and thermal stability than standard nylon.
TPU / TPE / TPA *Thermoplastic elastomers combine high elasticity and strength with good chemical resistance, making them ideal for functional, flexible parts.

These materials are available by contacting sales@zdcpu.com.

Design Guidelines of Selective Laser Sintering

The following table summarizes the recommended and technically feasible values for the most common features encountered in 3D printed parts.
FeatureRecommended size
Unsupported walls1.0 mm (0.040'')
Supported walls0.7 mm (0.030'')
Minimum detail size0.25 mm (0.010'')
Minimum hole size1.0 mm (0.040'')
Moving parts0.5 mm (0.020'') between moving surfaces
Assembly clearance0.4 mm (0.016'') between mating surfaces
Maximum wall thickness20 mm (0.8). Thicker parts must be hollowed with and at least two escape holes for powder removal with a min. diameter of 8 mm (0.3).
Available Surface Finishes of Selective Laser Sintering

Additional post processes can be applied to improve the appearance or mechanical properties of parts produced with SLS.
FinishDescription
As printedAs printed SLS parts are typically white or stone grey in color with a smooth surface and a powder texture and without visible layers.
DyedSLS parts can be dyed by immersing in a warm color bath to a variety of colors. The color penetration reaches an approximate depth of 0.5 mm and covers all surfaces.
Tumble smoothing *The parts are placed in a tumbler that contains small ceramic chips, gradually eroding its surface down to a polished injection molding-like finish.
Bead blastingBead blasting (shot pinning) adds a uniform matte or satin surface finish on a 3D printed part. *
Spray painting *SLS parts can be spray painted white, black or to a specified RAL or Pantone color.
Water tightening *SLS parts are vacuum impregnated with resin, sealing all internal porosity and ensuring water tightness.
Metal plating *Electroplating (nickel, copper or gold) is an ideal solution for parts that require a metallic appearance, without the high costs associated with metal 3D printing.
These finishes are available by contacting sales@zdcpu.com.

Zhongde is a professional rubber injection molding companies, we provide custom injection molding, sintered laser printing, selective metal sintering, laser sls, selective laser printing, selective sintering, 3d laser sintering, sls sintering and etc. Want to know selective laser sintering cost or more? Please contact us.