US Patent 7281647 Friction stir weld repair
Patent 7281647 was granted and assigned to Alcoa on October, 2007 by the United States Patent and Trademark Office.
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Patent abstract
A method of repairing a discrepancy in a casting, weldment or other workpiece comprised of a material characterized by thermoplastic properties includes excising the discrepancy by cutting, milling, or otherwise removing workpiece material surrounding the discrepancy so as to remove the discrepancy and form a cylindrical hole in the workpiece. The method further includes placing a cylindrical plug in the cylindrical hole and moving a friction stir welding tool around the circumference of the plug to weld the plug to the workpiece.
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US Patent 07281647 Friction stir weld repair US Patent 7281647 Friction stir weld repair
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Patent Number
0728164700
Patent Number
728164700
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Official Website
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
072816470
Date of Patent
October 16, 2007
0Patent Application Number
108751060
Date Filed
June 22, 2004
0Official Website
Patent Primary Examiner
Edits on 23 Sep, 2022
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
072816470
Date of Patent
October 16, 2007
0Patent Application Number
108751060
Date Filed
June 22, 2004
0Official Website
Patent Primary Examiner
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Golden AI
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US Patent 07281647 Friction stir weld repair
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07281647
Date of patent
October 16, 2007
Patent application number
10875106
Date Filed
June 22, 2004
Patent primary examiner
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