Friction stir weld tools

Details Friction stir weld tools Friction stir weld tools

2007-10-02

2007-10-02

Johnson, Jonathan (Department: 1725)

Metal fusion bonding

Including means to provide heat by friction between...

C228S112100

Reexamination Certificate

active

10928876

ABSTRACT:
A friction stir weld tool sleeve is supported by an underlying support pin. The pin material is preferably selected for toughness and fracture characteristics. The pin sleeve preferably has a geometry which employs the use of an interrupted thread, a plurality of flutes and/or eccentric path to provide greater flow through. Paddles have been found to assist in imparting friction and directing plastic metal during the welding process.

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