Reduction of striations and dross in laser fusion cutting by modelling and simulation of the highly dynamical melt flow (A09)

本子项目的目的是通过对熔体中高动态过程的模型和仿真分析，提高对金属材料激光熔化切割过程的理解。技术目标是生产高精度，无渣滓，高质量的切割，并减少切割边缘的粗糙度的数量级与技术状态一致。通过建模和仿真来确定和研究稳定熔体流动和均匀化熔体在切削刃上后续凝固的措施。

The aim of this subproject is to improve the process understanding in laser fusion cutting of metallic mate-rials by model- and simulation-based analysis of the highly dynamic processes in the melt. The technical objective is to produce high-precision, dross-free, high-quality cuts and to reduce the roughness of the cut edges by an order of magnitude in line with the state of the art. Modeling and simulation are used to identify and investigate measures to stabilize the melt flow and homogenize the subsequent solidification of the melt on the cutting edges.