Direct Metal Laser Sintering (DMLS)

Direct metal laser sintering (DMLS) is an industrial 3D printing process that builds fully functional metal prototypes and production parts in 7 days or less. A range of metals produce final parts that can be used for end-use applications.

How Does Metal 3D Printing Work?

The DMLS machine begins sintering each layer—first the support structures to the base plate, then the part itself—with a laser aimed onto a bed of metallic powder. After a cross-section layer of powder is micro-welded, the build platform shifts down and a recoater blade moves across the platform to deposit the next layer of powder into an inert build chamber. The process is repeated layer by layer until the build is complete.

When the build finishes, an initial brushing is manually administered to parts to remove a majority of loose powder, followed by the appropriate heat-treat cycle while still fixtured in the support systems to relieve any stresses. Parts are removed from the platform and support structures are removed from the parts, then finished with any needed bead blasting and deburring. Final DMLS parts are near 100 percent dense.

  • 1 to 50+ parts
  • Shipped in as fast as 7 days
  • AS9100 certified
Common Applications
  • prototyping in production-grade materials
  • functional, end-use parts
  • reducing metal components in an assembly


Watch: Why Use Metal 3D Printing?

See how metal 3D printing reduces components, which reduces assembly time, and ultimately reduces costs.

Metal 3D Printing for Production

Improve strength, dimensional accuracy, and cosmetic appearance of end-use metal components.

Download Designing for Metal 3D Printing

Design Guidelines

Our basic guidelines for DMLS include important design considerations to help improve part manufacturability, enhance cosmetic appearance, and reduce overall production time.

Material Options with DMLS

Our metal material selection for DMLS includes aluminum, cobalt chrome, Inconel, stainless steel, and titanium, which work well for both prototyping and production.


a metal 3D printing technician removes support structures from a DMLS part

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