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:
May. 28, 2013
Filed:
Nov. 23, 2010
Elisabeth J. Berger, Farmington Hills, MI (US);
Peter H. Foss, Oxford, MI (US);
Leonid C. Lev, West Bloomfield, MI (US);
Jon T. Carter, Farmington, MI (US);
Elisabeth J. Berger, Farmington Hills, MI (US);
Peter H. Foss, Oxford, MI (US);
Leonid C. Lev, West Bloomfield, MI (US);
Jon T. Carter, Farmington, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A method is disclosed for forming corrosion-resistant joints in a plurality of overlapping thin metal sheet workpieces, at least one of which comprises at least 85% by weight of magnesium sheets. The fastener is a fiber-reinforced polymer rod shaped and sized for insertion into a coaxial opening formed in each sheet and subsequently upset on each end to form a head. The workpiece sheets are deformed to form mechanically-interfering features which cooperatively complement the strength of the fastener, under at least some joint loading patterns. The method may be used for other workpiece and fastener compositions.