| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a welding method by which the generation of welding defects can be suppressed and metal plates can be suitably welded to each other when a pair of metal plates are welded to each other using a bobbin tool. <P>SOLUTION: The welding method for welding a pair of metal plates 102, 102 using a bobbin tool 5 including a pair of shoulders 11, 12 and a pin 13 formed between the shoulders 11, 12 includes a butting step for making end faces of the metal plates 102, 102 butt with each other and a welding step for moving the pin 13 of the rotated bobbin tool 5 to a butting part N formed by making the end faces butt with each other and friction stir-welding end faces to each other in which, when the metal plates 102, 102 are deformed by friction stir and positions of the end faces are shifted in the direction of the rotational axis of the bobbin tool 5, the bobbin tool 5 is movable in the rotational axis direction following the shift, and a distance between the shoulders 11, 12 is set to the thickness of the metal plate 102 or shorter in the welding step. <P>COPYRIGHT: (C)2012,JPO&INPIT |
