| 摘要 |
PROBLEM TO BE SOLVED: To provide a tool for friction-stirring joining with which the joined part is subjected to the friction-stirring joining in good condition. SOLUTION: The tool 13 for friction-stirring joining, is provided with a shoulder part 13a having a round shoulder face 31 for giving a material to be worked the friction heat, and a probe 13b is vertically arranged along the center axial line on the shoulder face. This shoulder face is the face orthogonal to the axial line, and on the shoulder face, a frictional heat forcible moving pattern 32 toward the center side from this outer peripheral side to the rotating direction of the shoulder, is formed. Further, in the probe, a working pattern which generates convection toward the lower side at the lower side of the probe by performing the stirring to the circular direction of the probe in parallel with the shoulder face at the upper side of the probe, can be formed. COPYRIGHT: (C)2004,JPO
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