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:
Feb. 04, 2014
Filed:
Feb. 10, 2011
John E. Carsley, Oakland, MI (US);
Blair E. Carlson, Ann Arbor, MI (US);
James G. Schroth, Troy, MI (US);
David R. Sigler, Shelby Township, MI (US);
John E. Carsley, Oakland, MI (US);
Blair E. Carlson, Ann Arbor, MI (US);
James G. Schroth, Troy, MI (US);
David R. Sigler, Shelby Township, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A method of joining a first and a second work piece, such as automotive closure panels, includes supporting the work pieces on a fixture, and then joining the work pieces to one another by a first solid state weld with a vibrating roller head of a tool assembly, such as a robotically-controlled ultrasonic seam welder. Next, a flange of the second work piece is hemmed about an outer periphery of the first work piece using the same or a different roller head with the work pieces supported by the fixture. The hemmed flange is then joined to the first work piece by a second solid state weld with the vibrating roller head of the robotically-controlled ultrasonic seam welder. A system for joining a first and a second work piece is also provided.