Process Control for Defect Mitigation in Laser Powder Bed Fusion
Additive Manufacturing EPR2023011
Success in metal additive manufacturing (AM) relies on the optimization of a
large set of process parameters to achieve materials whose properties and
performance meet design and safety requirements. Despite continuous improvements
in the process over the years, the quality of AM parts remains a major concern
for manufacturers. Today, researchers are starting to move from discrete
geometry-dependent build parameters to continuously variable or dynamically
changing parameters that are geometry- and scan-path aware. This approach has
become known as “feedforward control.”
Process Control for Defect Mitigation in Laser Powder Bed Fusion Additive
Manufacturing discusses the origins of feedforward control, its early
implementations in AM, the current state of the art, and a path forward to its
broader adoption.
