Simulation of the laser beam forming process with Moving Meshes for large aluminium plates

Abstract

FE-simulations of processes on large plates are hardly feasible due to limited computing powers of current work stations. As an approach the Moving Mesh is introduced. This mesh–where merely the area of the laser position is finely and the remaining parts are coarsely meshed–moves synchronously to the laser beam. To adapt it to special demands of laser beam forming of aluminium plates the influence of various discretisation factors on the temperature field is studied. The Moving Mesh is accordingly updated and applied. The results are compared to experimental results showing the high potential of the method.