Numerical Simulation of a Laser Welding Process

Finite element methods are used to model a laser welding process applied to a stainless steel disk. Both two- and three-dimensional analyses are conducted in an overall effort to minimize distortions caused by the process. Analytical results compare reasonably well with experimental data. Symmetric application of welds to both the top and bottom surfaces of the disk is investigated and found to be an effective means of significantly reducing distortions.