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:
Aug. 04, 2015
Filed:
Sep. 23, 2011
Anil K. Sachdev, Rochester Hills, MI (US);
Jon T. Carter, Farmington, MI (US);
Blair E. Carlson, Ann Arbor, MI (US);
Guangling Song, Troy, MI (US);
Anil K. Sachdev, Rochester Hills, MI (US);
Jon T. Carter, Farmington, MI (US);
Blair E. Carlson, Ann Arbor, MI (US);
Guangling Song, Troy, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
The corrosion resistance of formed and shaped sheet magnesium alloy articles may be improved by applying to the article a substantially crack- and pore-free ductile metal layer on at least selected surfaces and cut or sheared edges. An exemplary ductile metal may be aluminum or its alloys. Two methods of applying such a ductile metal layer are described. One method is suitable for extended areas of the magnesium alloy surface, and is applied prior to stamping the article while a second method, suitable for cut or sheared edges, is intended for application after the article is fully formed. The incorporation of both embodiments into conventional sheet metal stamping processes to form the corrosion resistant formed magnesium article is described.