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Friction stir welding tool having a counterflow pin configuration
Burford, Dwight A.
Burford, Dwight A.
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US 7,942,306
Adobe PDF, 1.16 MB
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2011-05-17
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Dwight A. Burford, inventor. Wichita State University, assignee. Friction stir welding tool having a counterflow pin configuration. United States patent: US 7,942,306, 2011, May 17.
Abstract
A friction stir welding tool having one or more tapered flats for promoting flow of weld material toward the pin terminus and one or more counter-spiraling channels or threads which for promoting flow of the weld material toward the tool shoulder.
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WSU inventor: Dwight A. Burford, Director, WSU Research Site, NSF Center for Friction Stir Processing (July 2007- June 2012); Senior Research Scientist and Director, NIAR Advanced Joining & Processing Laboratory (Aug 2005-June 2012). Since 2012, Dr. Burford has worked as a metallurgical engineering consultant. In September 2019, Dr. Dwight Burford joined the Advanced Materials and Manufacturing Processes Institute (AMMPI) and the Center for Friction Stir Processings (CFSP) at University of North Texas as a Research Professor.
Appl. no.: 11/786,961 filed Apr 13, 2007. U.S. Patent 7,942,306 granted May 17, 2011.
Current assignee: Burford Pamela B.
Appl. no.: 11/786,961 filed Apr 13, 2007. U.S. Patent 7,942,306 granted May 17, 2011.
Current assignee: Burford Pamela B.
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United States Patent and Trademark Office
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Status: Active
Adjusted expiration: 2028-04-26