Simulation of the Selective Laser Melting (SLM) Process for the Additive Manufacturing of Steel Parts (B01)

• Subject Area: Applied Mechanics, Statics and Dynamics
• Term: Funded in 2020
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 414265976

Selective laser melting is the standard process for additive manufacturing of complex metal parts. To predict resulting material properties, the project provides a model and computational framework for its simulation, ranging from the micro-scale (powder bed) to the meso-scale (mm range). To that end, local melting, flow, and solidification are simulated using the Lattice-Boltzmann method, considering more and more physical phenomena. By coupling the LB simulation to a solid mechanics FE simulation residual stresses are predicted. Upscaling leads to effective material properties and state of material for use in macroscopic simulations.

• DFG Programme: CRC/Transregios
• Subproject of: TRR 277: Additive Manufacturing in Construction (AMC) – The Opportunity for Large Impact
• Applicant Institution: Technische Universität Braunschweig
• Project Head: Professorin Dr. Laura De Lorenzis