Lehrstuhl für Fertigungstechnologie, Universität Erlangen-Nürnberg

Process control for zero-defect laser beam welding of contaminated steel sheets

Project Status: finished

Nowadays contaminated steel sheets can only be laser-welded under high economical and technical efforts. To ensure a high stiffness of the steel sheets at the laser beam welding for the automotive industry, it is advantageous to join the steels sheets adhesively by line-welding on lap joint with zero-gap. Previously not removed fat, oil or contaminations vaporize, before the base material melts. This leads to an explosively exhausting under insufficient degassing possibility, resulting in imperfections, pores or spillings.

Letztes Update: 01.01.2010