| 摘要 |
PROBLEM TO BE SOLVED: To provide a friction stirring and joining method capable of obtaining excellent joint strength, and joining metals of different thickness with each other without generating burrs on a joined portion. SOLUTION: A thin plate 3 and a thick plate 4 are butted to each other and arranged so that bottom surfaces thereof are on the same plane. Next, a pin part 2 is inclined by the angleθin the direction opposite to the joining direction, brought into contact with the butted portion of the thin plate 3 to the thick plate 4, and pressed thereagainst in the direction of the butted portion in a rotating manner to allow the pin part 2 to be advanced into the butted portion. The pin part 2 is advanced until an end part of a shoulder part 1 is located between an intermediate part of a step formed by the thin plate 3 and the thick plate 4 and an upper surface of the thin plate 3. The pin part 2 and the shoulder part 1 are moved at the advancing angleθin a rotating manner so that the pin part 2 passes through a butted surface. COPYRIGHT: (C)2005,JPO&NCIPI |
