| 摘要 |
PROBLEM TO BE SOLVED: To minimize the reduction in the sheet thickness of the member to be joined by attaining the fine adjustment of the fitting position of a burr removing cutter fitted to a friction stir joining tool, and by suppressing the cutting quantity of the member to be joined which is removed simultaneously with burrs or the like. SOLUTION: Friction stir joining is performed in such a manner that a pin part 4 of a friction stir joining tool 2 is inserted, and, while pressuring is performed by the shoulder part 3b thereof, as the friction stir joining tool 2 is moved in the direction of the arrow while being rotated, and, the burr removing device 1 cuts away burrs and a level difference produced at the bead part of the member W<SB>1</SB>to be joined upon the friction stir joining with a burr removing cutter 5 while performing the friction stir joining. The device is composed of: the burr removing cutter 5 screwed onto a fine thread 3a threaded on the outer circumference of a small-sized shaft part 3 projectingly provided with the pin part 4 of the friction stir joining tool 2: and a fitting nut 6 screwed onto the fine thread 3a and fixing the burr removing cutter 5 to the shaft part 3. COPYRIGHT: (C)2007,JPO&INPIT
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