Double-shouldered welding device for the friction stir...

Details Double-shouldered welding device for the friction stir... Double-shouldered welding device for the friction stir...

2011-04-26

2011-04-26

Stoner, Kiley (Department: 1735)

Metal fusion bonding

Process

Using dynamic frictional energy

C228S002100

Reexamination Certificate

active

07931185

ABSTRACT:
The invention relates to a double shouldered welding device for the friction stir welding of parts, in which at least one shoulder has two concentric rings providing two plane concentric bearing surfaces, the rings being arranged so that the smaller-diameter ring is capable of compressing the stirred material of the parts to be welded during advance of the welding device and so that the larger-diameter ring is capable of forming a sink-in stop for the smaller-diameter ring. The invention also relates to a method of friction stir welding by means of the welding device according to the invention, in which said device is force-driven.

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International Search Report dated Apr. 15, 2009.

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