| 摘要 |
PROBLEM TO BE SOLVED: To execute friction stir welding to an object to be bonded having various plate thickness in common by improving bonding strength, and furthermore, to set a bonding position with high accuracy. SOLUTION: A friction stir welding jig 23 contains a jig body 24 and a shaft part 25 to be inserted to a through-hole 27 coaxial with an axis 26 of the jig body 24. The jig body 24 is operated by a pressurizing means 41 for the jig body and a rotation driving means 42 for the jig body. The shaft part 25 is operated by the pressurizing means 43 for the shaft part and the rotation driving means 44 for the shaft part. The end part 31 of the jig body 24 is pressurized to the object 21 to be bonded in a state that the jig body 24 is stopped, and after that, the rotation driving of the jig body 24 is started. Also, the pressurizing and the rotation driving of the shaft part 25 are executed in a pressurized state of the jig body 24. COPYRIGHT: (C)2004,JPO
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