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

选择性激光熔化是复杂金属零件增材制造的标准工艺。为了预测所产生的材料特性，该项目提供了一个模型和计算框架，从微观尺度（粉末床）到中尺度（毫米范围）进行模拟。为此，考虑到越来越多的物理现象，使用Lattice-Boltzmann方法模拟局部熔化、流动和凝固。通过耦合LB模拟固体力学有限元模拟残余应力预测。放大导致有效的材料特性和材料状态用于宏观模拟。

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.