LASER WELDING GUN WITH A LENS SPREADING THE LASER BEAM OUT FLAT; METHOD FOR PRODUCING A WELDED JOINT WITH SUCH A LASER WELDING GUN

摘要

The invention relates to a laser welding gun, in particular for welding plastic components (7, 7'), comprising a housing (1) and a laser beam source (2). A lens (3) is provided, spreading one or more laser beams (4) that emerge from the laser beam source (2) out flat, so that there emerges from the housing (1) a laser radiation (5) of a cross-sectional area (A) that is is greater by a multiple than the cross-sectional area (a) of the laser beam(s) (4) emerging from the laser beam source (2). The invention also concerns a method for producing a welded joint by a laser welding gun according to one of claims 1 to 8.