FRICTION AGITATION TOOL, FRICTION AGITATION JUNCTION APPARATUS, FRICTION AGITATION JUNCTION METHOD, AND JUNCTION MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a friction agitation tool that can make junction firm in the interface between a pair of stacked metal materials.;SOLUTION: The apparatus includes a first rotary tool 21 arranged on one side of a pair of metal materials 5 where an interface 6 is formed and a second rotary tool 22 arranged on the other side: the first rotary tool 21 has a first tool body 31 having a first shoulder part 35 coming in contact with the front surfaces of the pair of metal materials 5, and the second rotary tool 22 has a second tool body 41 having a second shoulder part 45 coming in contact with the back surfaces of the pair of metal materials 5, and a probe 42 that projects from the second tool body 41 toward the first rotary tool 21 and agitates the pair of metal materials 5 sandwiched between the first shoulder part 35 and the second shoulder part 45. The probe 42 includes a first thread groove 51 formed in one side of the outer peripheral surface and a second thread groove 52 formed in the other side of the outer peripheral surface. The probe 42 is formed so that the boundary 53 between the first thread groove 51 and the second thread groove 52 may be positioned on the interface 6.;COPYRIGHT: (C)2015,JPO&INPIT