Powder metal friciton stir welding tool and method of...

Metal fusion bonding – Including means to provide heat by friction between...

Reexamination Certificate

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C228S112100, C075S228000, C075S232000, C156S073500

Reexamination Certificate

active

07837082

ABSTRACT:
A friction stir tool has an axis of rotation and a welding tip that is made of powdered metal material.

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patent: 2007/0119276 (2007-05-01), Liu

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