FRICTION STIR WELDING METHOD AND EQUIPMENT FOR THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a friction stir welding method capable of obtaining a junction of high quality by maintaining stable welding treatment without interrupting the welding treatment even when a foreign substance is placed on an abutting part of members desired to be welded in performing the welding treatment by pressing a tool under rotation to the members and causing the plastic fluidization of the welding members by the friction heat generated at this time. SOLUTION: The welding treatment is continued while the control position of the joining tool 2 is kept maintained when the result of the measurement from a position sensor 6 disposed in a previous position of the joining tool 2 becomes outside the tolerance. The welding treatment is stopped in the case of the continuation of the state that the result of the measurement of the position sensor 6 is outside the tolerance a desired number of times. COPYRIGHT: (C)2005,JPO&NCIPI