Friction stir welding tool having a scroll-free concentric region
Dwight A. Burford, inventor. Wichita State University, assignee. Friction stir welding tool having a scroll-free concentric region. United States patent: US 8,016,179, 2011, Sep 13.
A friction stir welding tool having a shoulder section with a scroll pattern that terminates prior to the edge or boundary of the shoulder section to create a scroll-free concentric surface area.
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)
Appl. no.: 11/487,814 filed Jul 17, 2006. U.S. Patent 8,016,179 granted Sep 13, 2011.