Friction stir welding apparatus includes pin to form plasticized zone, first friction surface segment having first friction surface for resting on the workpiece, and feed device for introducing filler material into the plasticized zone

摘要

A friction stir welding apparatus that forms a plasticized zone of the workpiece (2), comprises a pin (3) to form the plasticized zone when rotated; a first friction surface segment; and a feed device for introducing filler material into the plasticized zone. The pin and the first friction surface segment are rotationally driven about an axis of rotation (6). The first friction surface segment (4) has a first friction surface (5) for resting on the workpiece. An independent claim is also included for a process for friction stir welding.