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:
Sep. 15, 2015
Filed:
Jun. 12, 2012
Applicants:
Arpad Takacs, Thornhill, CA;
Di Yang, Troy, MI (US);
Roger Bianchi, Macomb, MI (US);
Inventors:
Assignee:
Martinrea Industries, Inc., Troy, MI (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C21D 8/00 (2006.01); B21D 28/26 (2006.01); C21D 1/673 (2006.01); B21D 22/02 (2006.01); B21D 35/00 (2006.01); C21D 1/773 (2006.01); C21D 1/613 (2006.01);
U.S. Cl.
CPC ...
B21D 28/26 (2013.01); B21D 22/022 (2013.01); B21D 35/001 (2013.01); C21D 1/673 (2013.01);
Abstract
A method for hot stamping an iron based component in which the component is heated to a temperature sufficient to transform the component into austenite. The heated component is then positioned in an open stamping die and the stamping die is closed to mechanically change the shape of the heated component to a desired end shape of the component. At least one opening is punched in the heated component and, thereafter, the component is quenched at a rate and to a temperature sufficient to transform the component into martensite.