| 摘要 |
PROBLEM TO BE SOLVED: To provide a friction stirring and joining device and a friction stirring and joining method in which a joining surface is copied with high accuracy by controlling the pressure by a hydraulic cylinder even with any distortion of a surface plate, defective setting, or distortion or unevenness of a work joining part. SOLUTION: In the friction stirring and joining device in which a shoulder surface of a rotary tool to be pressed against and brought into contact with any one of at least face and back joining surfaces is movable in the Z-axis direction, and a fluid pressure urging means to control the pressure on the joining surface of the shoulder surface to be substantially constant by the fluid pressure is provided, the fluid pressure urging means is a hydraulic pressure urging path, and a feedback circuit is provided in the path via a relief valve. When the shoulder surface of the rotary tool is fluctuated in the Z-axis direction following the joining surface, the hydraulic pressure received by the rotary tool is controlled to be a predetermined value while releasing the hydraulic pressure by the feedback circuit, or the fluid pressure is the hydraulic pressure, and a hydraulic piston mechanism to urge the hydraulic pressure to the rotary tool applies the hydraulic pressure from both sides of a separating direction from the joining surface and an approaching direction thereto. COPYRIGHT: (C)2004,JPO
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