The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 08, 2011
Filed:
Sep. 01, 2010
David R. Sigler, Shelby Township, MI (US);
Blair E. Carlson, Ann Arbor, MI (US);
Robert T. Szymanski, St. Clair Township, MI (US);
Mark T. Hall, Troy, MI (US);
David R. Sigler, Shelby Township, MI (US);
Blair E. Carlson, Ann Arbor, MI (US);
Robert T. Szymanski, St. Clair Township, MI (US);
Mark T. Hall, Troy, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A method of performing a plurality of friction stir spot welds with a friction stir spot welding (FSSW) system includes measuring a length of a pin of a weld tool of the FSSW system. The length is compared to a first limit to determine if the length is above or below the first limit. Debris is removed off of a tip of the pin when the length is determined to be above the first limit. The length is also compared to a second limit to determine if the length is above or below the second limit. At least one friction stir spot weld is performed on a workpiece when the length is determined to be less than the first limit and above the second limit.