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
Meeting High-Speed Communications Energy Demands Through Simulation
The information and communication technology industry needs new energy-efficient devices that can keep up with the ...
Pumping and Injecting from a Single Borehole
Professor Dr. Martin Sauter leads a group at the University of Göttingen in research on hydrogeology. Cooperating with ...
The Sound of Perfection Thanks to the Modeling of Acoustic Metasurfaces
At the École Polytechnique Fédérale de Lausanne (EPFL), engineers have designed an acoustic metasurface that could be ...
Get a Quick Look at How Plastometrex Uses COMSOL Compiler™
Step into the world of the startup company Plastometrex to see how they developed an efficient method for measuring ...
