| 摘要 |
PROBLEM TO BE SOLVED: To provide a tool for friction stir welding, capable of cutting and removing burrs generated inside and outside a pipe material, practically simultaneously with the friction stir welding, when joining a flange member to the end part of a pipe material by friction stir welding. SOLUTION: The tool is provided with: a shoulder part 9 functioning as a friction surface for the friction stir welding; an inner edge 11, which is integrally formed on the front edge side of the shoulder part 9 across a neck part 12, has a diameter insertable in the inside of a pipe material 1, and cuts and removes the burrs F1 generated on the inside of the pipe material 1; and an outer edge 10, which is integrally formed outside the shoulder part 9 and removes burrs generated outside the joint part. When pressing-in a tool 6 into base materials 1, 2, the rotation direction of the tool is made a normal direction R1, and, when separating the tool 6 from the base materials 1, 2, the rotation direction is made a reverse state. COPYRIGHT: (C)2010,JPO&INPIT
|
