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:
Dec. 25, 2018
Filed:
Jan. 08, 2016
Applicant:
Ford Motor Company, Dearborn, MI (US);
Inventor:
Michael A. Kopmanis, Monroe, MI (US);
Assignee:
FORD MOTOR COMPANY, Dearborn, MI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C21D 1/06 (2006.01); C21D 1/18 (2006.01); C21D 9/30 (2006.01);
U.S. Cl.
CPC ...
C21D 9/30 (2013.01); C21D 1/06 (2013.01); C21D 1/18 (2013.01);
Abstract
A method of crankshaft laser hardening includes grinding one or more surfaces of a green crankshaft to produce a green ground crankshaft and to define journal geometry thereon prior to hardening of the surfaces to avoid loss of compressive stresses associated with grinding a hardened crankshaft. The method also includes laser hardening the surfaces of the green ground crankshaft to induce compressive stresses.