Thermal-Elastic-Plastic Finite Element Analysis for Laser Welding Deformation of Thin Plate

Thermal-Elastic-Plastic finite element analysis is introduced to study the deformation of laser welding of thin plate with consideration of varying material parameters. From aspects of numerical simulation and experiment, three welding cases are investigated: (1) the butt welding with constraint clamp, (2) the free bead welding, (3) the bead welding with constraint clamp. At last, the deformation configurations of welding plate under different constraint cases are characterized, and the behaviors of welding deformation are summarized.