Key to the success of laser brazing technology, besides a stability that is similar to a weld, is mainly with the high aesthetic quality of the joints. Diode laser brazing is a well-established method for joining galvanized steel sheets in series production of automotive bodies. Brazing optics, developed specifically for this application, are moved along the joint by means of robots. The laser beam is transported by a fiber to the optics, and copper silicon wire (CuSi3) is melted within the brazing process. Key to the success of laser brazing technology, besides a stability that is similar to a weld, is mainly with the high aesthetic quality of the joints. Laser-generated brazing seams are known for their smooth, clean surfaces and junctions to the joining parts. This is visually appealing and it almost completely spares post-processing, allowing immediate painting after cleaning possible. Laser-based brazing enables such a unique impression of the joint that, unlike conventional joining techniques, cover parts and their storage and assembly can be saved. However, laser brazing technology has not been able to meet—at least partially—the expectations placed on it. Automobile manu...