Powder-Bed Fusion

Metal 3D Printing Process

Metal Powder-Bed Fusion—also known as Selective Laser Melting or Direct Metal Laser Sintering—is an Additive Manufacturing process using a laser to melt consecutive layers on a metal powder-bed. The powder fuses into the finished dimensional part, incorporating complex internal and external geometries.

CEO of Xact Metal explaining the XM200C, an affordable metal 3d printing machine manufactured by Xact Metal.
The complete CAD-to-part process includes the following steps.
1. Pre-processing
  • Optimizing CAD build file for additive manufacturing
  • Support generation
  • Slicing
  • Selection of scanning strategy
2. Print Preparation
  • Loading build file
  • Preparing build volume and adding metal powder
3. Print
  • Precision controlled fusion of the metal powder into layers that form the desired shape and volume
4. Separation of Part from Build Plate
  • Removal of part from build plate with wire EDM, bandsaw, or flush cutting tool

5. Post-processing
  • Removal of supports 
  • Final surface finishing
  • Heat treating for mechanical properties
Within the Print stage, the part is fused layer-by-layer using the following steps.
POWDER FEED

Feed cylinder increments up placing powder in front of the recoater.

ADDING POWDER LAYER

Recoater moves across the feed cylinder delivering powder to the build cylinder.

FUSION

Laser fuses the cross section of the part.

BUILD CYLINDER

Build cylinder increments down one thickness layer.

COMPLETING THE BUILD

The process is repeated until the volume of the part is fully built.

BUILD PLATE AND PART REMOVAL

The build cylinder raises up and the build plate is removed.

Questions? Comments? Contact Us.

+1 (814) 205-1505  |  info@xactmetal.com  |