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
Producing Power, Protecting Fish with a Darrieus Water Turbine
Physixfactor used simulation to design a water turbine for use in coastal flood control structures in the Netherlands. ...
Radio-Frequency-Induced Heating of Medical Devices in MRI Systems
MED Institute Inc., a full-service contract research organization (CRO) for the medical device industry, is using ...
Keynote: Automotive Audio in the Digital Age
The goal of audio systems is to recreate live sound as accurately as possible, no matter where they are being used. ...
Fuel Cells Poised to Replace India’s Diesel Generators
Inefficient and potentially harmful diesel generators are still the prevailing method of decentralized power ...
