Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Robert W. Carter0
Lewis N. Payton0
Date of Patent
October 2, 2007
0Patent Application Number
109288760
Date Filed
August 20, 2004
0Patent Citations Received
Patent Primary Examiner
Patent 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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