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Friction Stir Weld ToolsA 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.
Document ID
20080009745
Acquisition Source
Headquarters
Document Type
Other - Patent
Authors
Carter, Robert W. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Payton, Lewis N. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
August 24, 2013
Publication Date
October 7, 2007
Subject Category
Mechanical Engineering
Report/Patent Number
Patent Number: NASA-Case-MFS-31918-1
Patent Application Number: US-Patent-Appl-SN-10/928876
Patent Number: US-Patent-7,275,675
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
NASA-Case-MFS-31918-1|US-Patent-7,275,675
Patent Application
US-Patent-Appl-SN-10/928876

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