| 摘要 |
PROBLEM TO BE SOLVED: To provide a joining method for easily joining butted portions of a pair of metal members with each other, and enhancing the airtightness and the watertightness of the joined portion. SOLUTION: The joining method for butting a pair of plate-like metal members 1a, 1b and joining them with each other includes a butting step of butting an end face of the metal member 1b to a rear face 12a of the metal member 1a to form the butted portion J1, a welding step of welding the butted portion J1 from inner corners of the metal members 1a, 1b, and a friction stir welding step of applying the friction stir welding to the butted portion J1 by inserting a rotary tool G from a surface 11a side of the metal member 1a. COPYRIGHT: (C)2011,JPO&INPIT
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