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:
Jul. 17, 2012
Filed:
Nov. 09, 2009
Applicants:
Paul E. Krajewski, Troy, MI (US);
Yen-lung Chen, Troy, MI (US);
Inventors:
Paul E. Krajewski, Troy, MI (US);
Yen-Lung Chen, Troy, MI (US);
Assignee:
GM Global Technology Operations LLC, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 20/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
A procedure for incorporating particles to a predetermined depth in a body to develop a composite surface layer using friction stir processing is described. The process comprises; preparing the surface of the body; applying particulate matter to the prepared surface; selecting a friction stir tool with a pin length substantially equal to the desired composite layer thickness; using a friction stir process to frictionally heat, stir and intermix the particulate matter with the matrix of the article; and traversing the friction stir tool across the body.