FRICTION AGITATION JOINTING TOOL

摘要

PROBLEM TO BE SOLVED: To improve the heat-resistance and the heat input of a friction agitation junction tool to be used in a friction agitation junction for jointing the members to be jointed by pushing a tool having a projection (or a probe part) while rotating the tool, by softening a portion of the member to be jointed by a frictional heat, and by agitating the softened part with the projection.SOLUTION: A friction agitation jointing tool is characterized by ceramics having a thermal conductivity of 34 W/mK or lower and a thermal shock fracture resistance coefficient of 8 kW/m or larger.SELECTED DRAWING: Figure 5