| 摘要 |
PROBLEM TO BE SOLVED: To reduce wear of a rotating tool in a joining method of a metallic material using the rotating tool. SOLUTION: A pin, which is provided on a tip of a bar-like rotating tool 10, is inserted into a joint 2 of two compound materials 1, 1' to be joined with each other, and moved and joined while being rotated along the longitudinal direction of the joint 2. The rotating tool 10 consists of a wide shoulder 12 and a small pin 11 which is provided on its tip and inserted in a metallic material. The pin 11 is straight-columnar. A side face of the pin 11 is a smoothly curved surface, and no screw groove is formed therein. A contact part 3 with the rotating tool 10 at the joint 2 is in a solid-liquid coexistent state by the wear with the rotating tool 10. Thus, the wear of the rotating tool can be reduced. COPYRIGHT: (C)2006,JPO&NCIPI |
