| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of a friction stir by which a part to be joined is excellently joined with a high efficiency of the joining work. SOLUTION: The method of the friction stir joining is for joining a part B1 to be joined extending in the peripheral direction of joining members 1A and 1B having a cylindrical form. The joining members 1A and 1B are freely rotatably inserted into the hollow part 21 of a restricting sleeve 20. Thus the joining members 1A and 1B are so restricted that the sectional form of the joining members is not deformed. A joining head 13 of a joining tool 10 is inserted into the part B1 to be joined through an insertion port 22 for the joining head provided at the intermediate part in the axial direction of the peripheral wall of the restricting sleeve 20. Under this state, the part B1 to be joined is joined by turning the joining members 1A and 1B so that the part B1 to be joined passes in succession under the joining head 13, or turning the joining head 13 and the restricting sleeve 20 as one body so that the joining head 13 passes on the part to be joined B1. |
