Friction friction welding technology for joining components made of different materials

摘要

The disclosure relates to a technology for joining components (20, 30) of different materials by friction stir welding (FSW). It comprises a method, a welded connection (50), a FSW tool (10) and a processing station (60). The components (20, 30) are positioned to form a butt joint between two abutting edges (21, 31). The FSW tool (10) is next to the butt joint on the first component whose material has a lower melting temperature, set and immersed in plasticizing the material (40). A welding pin (11) is pressed perpendicular to the abutting edge (31) of the second component whose material has a higher melting temperature (Z2, FN) and then moved along the abutting edge (31) of the second component (30) (Z3, SR) , The FSW tool is preferably moved under employment in two angles (A1, A2). The welded joint produced is based at least on a form fit (42, 42a, 42b) between the plasticized material (40) in the weld seam and the substantially non-plasticized impact edge (31) of the second component (30).