| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of joining a pipe and a member to be joined by which the joining strength between the pipe and the member to be joined is raised.SOLUTION: The pipe 60 is inserted into an inserting hole 71 which is provided on the member 70 to be joined. An expanding and joining tool 51 is arranged in the hollow part 62 of the pipe 60. The pipe 60 is expanded with the expanding and joining tool 51 so that the outer peripheral surface 61 of the pipe 60 is pressure-contacted with the inner peripheral surface 72 of the inserting hole 71 of the member 70 to be joined while relatively rotating the pipe 60 about the center axis Z of the pipe 60 to the member 70 to be joined. In this way, the member 70 to be joined is expanded and joined with the pipe 60 and simultaneously pressure-welded by friction. |
