LASER WELDING OF ZINC COATED STEELS WITH NO GAP USING A SUPERMODULATED SOLID STATE LASER

摘要

A method for laser welding a lap joint between two or more zinc coated steel sheets (35, 36) , comprising holding the sheets together so that there is subsequently no gap at the desired weld location (34) and applying an output from a supermodulated solid state laser along the desired weld line, thereby to weld the joint.