US Patent 8056797 Expandable mandrel for use in friction stir welding
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Patent abstract
A mandrel that provides a counter-force to the pressure exerted on the outside of a pipe or other arcuate surface by a friction stir welding tool, wherein the mandrel is expandable through the use of a wedge, and wherein the mandrel enables multiple friction stir welding heads to simultaneously perform welding on the arcuate surface.
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Patent Inventor Names
Jonathan A. Babb0
Monte Russell0
Russell J. Steel0
Scott M. Packer0
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US Patent 08056797 Expandable mandrel for use in friction stir welding US Patent 8056797 Expandable mandrel for use in friction stir welding
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Patent Number
080567970
Patent Number
80567970
Edits on 28 Mar, 2023
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Patent Jurisdiction
Patent Number
080567970
Date of Patent
November 15, 2011
0Patent Application Number
126941570
Date Filed
January 26, 2010
0Patent Primary Examiner
Edits on 14 Dec, 2021
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US Patent 08056797 Expandable mandrel for use in friction stir welding
Infobox
Is a
Patent jurisdiction
Patent number
08056797
Date of patent
November 15, 2011
Patent application number
12694157
Date Filed
January 26, 2010
Patent primary examiner
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