FRICTION STIR WELDING DEVICE AND METHOD FOR CONTROLLING FRICTION STIR WELDING

摘要

A plurality of temperature sensors (13) are provided inside a protruding part (11) of a welding tool (1) at positions within the protruding part (11) of the welding tool that are at individually different depths from the surface of a welded material when the protruding part (11) is press-fitted to the welded material. A control device (5) controls the rotation speed and/or the movement speed of the welding tool (1) when welding is performed, whereby it is possible to manage the welding tool such that the temperatures detected by the temperature sensors (13) fall within a predetermined temperature management range, and improve the uniformity of the welding quality.