ICTM Collaborative R&D 2020

In-situ Monitoring in LPBF for a Digital Representation of Part Geometry

Can the actual geometry be detected during the LPBF process using a high-precision optical system?


Challenge and Motivation

  • Properties of LPBF-manufactured parts are a black box during production. 
  • Geometry of specimens can only be determined outside the machine after manufacturing.


  • Implement a high-resolution optical monitoring system to record the powder bed after each layer.
  • Determine the layer-wise contours from the images.
  • Aggregate to a digital model of the part during production.