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selective laser sintering (3D printing) (SLS)

Selective Laser Sintering( SLS) is a metal 3D printing technique used for rapid prototyping. In selective laser sintering, the filament with the printing powder is applied in layers in thin layers and fused together in a sintering process.

In selective laser sintering, the filament is applied to the print object in layers and sintered with a laser beam from a powerful carbon dioxide laser. The print bed is then minimally lowered and the next filament layer is applied.

The filament is a plastic strand that contains a proportion of ceramic powder, metal powder or powder of other material. The layer thickness is between 1 µm and 200 µm. The individual layers are sintered or melted down after the metal powder has been applied. The resolution is very high and ranges from 1 µm to 200 µm.

3D printing techniques

3D printing techniques

The process of laser sintering is similar to the process of selective laser melting, although the printed pieces of the latter process have a higher density.

The production of 3D models using the SLS process is extremely time-consuming and can take several hours. This is due to the fact that after sintering, the print material must first cool before a new layer of print powder is printed. Therefore, laser sintering is primarily suitable for prototyping.

Englisch: selective laser sintering (3D printing) - SLS
Updated at: 30.10.2021
#Words: 210
Links: light amplification by stimulated emission (fiber optics) (Laser), signalling link selection (SS7) (SLS), 3D printing, rapid prototyping (RP), indium (In)
Translations: DE

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