friction welding process and profile part for use in friction welding process

摘要

An abutted portion of face plates 12b and 22b of frame members 10 and 20 is carried out according to a friction stir welding. Next, a connection member 30 is mounted on seats of the frame members 10 and 20. A projection portion 34 of one end of the connection member 30 is inserted into a groove 14 of an end portion of a face plate 11 of the frame member 10. Next, another end of the connection member 30 is temporarily welded to a face plate 21 of the another hollow frame member 20. With this condition, an abutted portion of the face plate 11 and the connection member 30 is carried out according to the friction stir welding. An overlapped portion between another end of the connection member 30 and the frame member 20 is carried out according to the friction stir welding. When the hollow frame members 10 and 20 are welded from a side one of face, a temporary welding of the connection member 30 can be lessened. IMAGE