M. Bachmann, V. Avilov, A. Gumenyuk, and M. Rethmeier
BAM Federal Institute For Materials Research and Testing
Germany
High-power laser beam welding uses a localized heat source to achieve narrow deep welds and high welding rates. Engineers run into some difficulties because the use of a localized heat source often results in the distortion of metal components; spattering and the ejection of droplets from the weld pool results in underfills, undercuts, craters, blowholes, or blowouts.
A stationary magnetic field is applied to the laser welding process to improve its quality and counteract effects such as spattering. BAM Federal Institute For Materials Research and Testing in Germany are working to improve the quality of high-power laser beam welding using COMSOL Multiphysics. To model and simulate the laser beam welding, heat transfer, fluid dynamics, and electromagnetics were coupled and solved. This allowed BAM to accurately model the process by including Marangoni effects, gravity, latent heats of fusion, and Lorentz forces.
Suggested Stories
Keynote: Multiphysics Modeling in AR & VR Innovation
Meta is working to advance the optical and display technologies for its augmented reality (AR) and virtual reality ...
Get an Inside Look at How Veryst Engineering Looks Inside Designs
Step into the material test lab at Veryst Engineering to see how they develop accurate material models for use in ...
Making Smart Materials Smarter with Multiphysics Simulation
Smart materials with magnetostrictive behavior are engineered and incorporated in high-precision devices by the ...
Scattering of Electromagnetic Waves by Particles
When electromagnetic waves propagate through matter, they interact with inhomogeneities and particles that can locally ...
