A method of mending a friction stir joint

摘要

A method of mending a friction stir joint between members (20, 30) formed of an aluminium alloy, the joint having a joining bead (50) formed by friction stir joining, comprising the steps of (i) forming a mending zone by removing a defect in said joining bead (50) by grinding, and (ii) forming a mending bead at said mending zone by TIG welding using a welding rod which is made of the same aluminium alloy as said members (20, 30).