Direct Metal Laser Sintering (DMLS)

DMLS 3D Printing Services

Selective Laser Melting (SLM) and Direct Metal Laser Sintering (DMLS) are two metal additive manufacturing processes that belong to the powder bed fusion 3D printing family. The two technologies have a lot of similarities: both use a laser to scan and selectively fuse (or melt) the metal powder particles, bonding them together and building a part layer-by-layer. Also, the materials used in both processes are metals that come in a granular form.

The differences between SLM and DMLS come down to the fundamentals of the particle bonding process (and also patents): SLM uses metal powders with a single melting temperature and fully melts the particles, while in DMLS the powder is composed of materials with variable melting points that fuse on a molecular level at elevated temperatures.

Design Considerations

Supported Wall Thickness:

0.5 mm

Unsupported Wall Thickness:

1 mm


ø 0.8 mm

Escape Holes:

3 mm



Dimensional Accuracy:

± 0.2 mm to 0.4 mm

Tolerance for Assemblies:

0.2 mm for Connections, 0.5 for Moving Parts


  •   DMLS/SLM produce high performance, end-use metal 3D printed parts for industrial applications in aerospace, automotive and medical.