FRICTION STIR WELDING TOOL

摘要

Disclosed is a friction stir welding tool (10) equipped with a probe (13) and a holder (16). At the tip of the probe (13) there is a pin part (11) and at the base there are probe-side protrusions (24) and probe-side recesses (25). At the tip of the holder (16) there are holder-side recesses (27) which mate with the probe-side protrusions (24), and holder-side protrusions (28) which mate with the probe-side recesses (25). External force applied to the probe (13) is transmitted from the probe-side protrusions (24) to the holder-side recesses (27) and from the probe-side recesses (25) to the holder-side protrusions (28).

主权项

1. A friction stir welding tool for joining materials to be joined by rotating a pin part at a high speed to generate frictional heat to thereby cause plastic flow in the materials to be joined, the tool comprising:
a probe having the pin part at a distal end thereof, the probe having, at a base portion thereof, probe-side protrusions, probe-side recesses, and a female screw part; a columnar holder having, at a distal end thereof, holder-side recesses and holder-side protrusions, respectively, fitted with the probe-side protrusions and the probe-side recesses, the holder further having a through-hole extending along a center axis thereof; and a bolt inserted through the through-hole and having a male screw part at a distal end thereof, the male screw part being threaded into the female screw part to thereby retain the probe on the distal end of the holder.