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:
Mar. 31, 2015
Filed:
Dec. 02, 2011
Michael J. Walker, Shelby Township, MI (US);
Bob R. Powell, Jr., Birmingham, MI (US);
Aihua A. Luo, Troy, MI (US);
Michael J. Walker, Shelby Township, MI (US);
Bob R. Powell, Jr., Birmingham, MI (US);
Aihua A. Luo, Troy, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A method of bonding a metal to a substrate involves forming a plurality of nano-features in a surface of the substrate, where each nano-feature is chosen from a nano-pore and/or a nano-crevice. In a molten state, the metal is over-cast onto the substrate surface, and penetrates the nano-features. Upon cooling, the metal is solidified inside the nano-features, where the solidification of the metal forms a mechanical interlock between the over-cast metal and the substrate.