SLS technology uses carbon dioxide lasers to selectively sinter powder materials (plastic powder, mixed powder of ceramic and binder, mixed powder of metal and binder, etc.). It is a kind of integrated three-dimensional entity layer by layer. Process method. At UP Rapid, we use SLS to produce high performance, accurate functional prototypes and batch parts, and it only takes 3 days at the fastest.
How SLS works?
Selective Laser Sintering is the use of laser to selectively sinter solid powder in layers, and superimpose the sintered solidified layers to form parts with the required shape. The whole process includes the establishment of CAD model and data processing, powder spreading, sintering and post-processing.
The entire process device is composed of a powder cylinder and a forming cylinder. The powder cylinder piston (powder feeding piston) rises during operation, and the powder spreading roller spreads the powder evenly on the forming cylinder piston (working piston). The computer slices the model according to the prototype. Control the two-dimensional scanning trajectory of the laser beam to selectively sinter the solid powder material to form a layer of the part.
After a layer of powder is completed, the working piston is lowered by one layer thickness, and the powder spreading system is spread with new powder. Control the laser beam to scan the sintered new layer. This cycle repeats, layer by layer, until the three-dimensional part is formed. Finally, the unsintered powder is recycled into the powder tank, and the molded part is taken out.
SLS Capabilities
Our Essential Guide to SLS includes important design considerations to help improve part manufacturability, enhance appearance, and reduce overall production time.
| Selective Laser sintering （SLS） | Material Options | Features | |||
| Max Part Size | All SLS Materials | 269*304*406 | PA11 Black | Highest elongation at break of all additively manufactured nylons, Uniform deep-black color that showcases features and provides a clean appearance | |
| PA12 | 482*482*431 | PA12 White | Economical material choice, Strength and stiffness | ||
| Layer Thickness | 0.1016 | PA12 Mineral-Filled(PA620-MF) | Highest stiffness of all additive manufactured nylons, Temperature resistance | ||
| Min Feature Size/mm |
0.5 |
PA12 40% Glass-Filled (PA614-GF) |
Long-term wear resistance, Increased stiffness |
||
| Tolerance/mm |
0.25 |
TPU 70-A | High elongation at break, Flexibility | ||
|
Min Wall Thickness/mm |
0.025 | Polypropylene Natural | Chemical resistance, Durable, low weight material | ||
|
Surface Finish Options |
Painting, Taps, Inserts |
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|
Technical performance |
Tensile Strength |
break elongation |
Yield elongation |
Elastic Modulus |
Poisson ratio |
Bending strength |
Flexural modulus |
Hardness |
water absorption |
Izod Impact Strength |
Graves tear |
|
Testing method |
ASTM D638M |
ASTM D638M |
ASTM D638M |
ASTM D638M |
ASTM D638M |
ASTM D790M |
ASTM D790M |
ASTM D2240 |
ASTM D570-98 |
ASTM D256A |
ASTM D1004 |
|
Metric |
5.7MPa |
7.9% |
3.5% |
2,460MPa |
0.23 |
68.9MPa |
2,250MPa |
N/A |
0.24% |
23.5J/cm |
123，000N/m |
Compare Material Properties
Obtain a material properties comparison file here for a better understanding of SLS part material selection.
SLA Video
We supply high quality SLS 3d printing wax parts directly from our factory. Up Rapid devotes ourselves to custom mechanical parts, components for decades, covering most of Europe and the Americas market. We are expect to be your long term partner in China.
We supply high quality SLS 3d printing nylon parts service directly from our factory. Up Rapid devotes ourselves to custom mechanical parts, components for decades, covering most of Europe and the Americas markets. We are expect to be your long term partner in China.
