Friction stir welding machine and friction stir welding tool

Details Friction stir welding machine and friction stir welding tool Friction stir welding machine and friction stir welding tool

2007-03-13

2010-11-09

King, Roy (Department: 1793)

Metal fusion bonding

Including means to provide heat by friction between...

C228S112100

Reexamination Certificate

active

07828191

ABSTRACT:
The present invention is a friction stir welding machine adapted to perform solid phase welding on a welding portion of materials to be welded, by pressing a welding tool against the welding portion of the materials to be welded while rotating the welding tool, and forcing the welding tool to be advanced into a softened portion which is softened by a frictional heat while stirring the softened portion, wherein a coating made of aluminum nitride is formed on at least a region of the welding tool to be in contact with the materials to be welded.

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