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. 16, 2010
Filed:
Oct. 04, 2005
Applicant:
Hans Bodin, Sodra Sunderbyn, SE;
Inventor:
Hans Bodin, Sodra Sunderbyn, SE;
Assignee:
Gestamp Hardtech AB, Lulea, SE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C21D 8/00 (2006.01); C21D 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
In the press hardening process when a blank is formed and cooled in cooled tools (), the tools are used as a fixture during the hardening. The tools have alternately contact surfaces () and clearances () in a certain area against the formed product (-) and the contact surfaces have an area that is less than 20% of the area. As a result, this area will be a soft zone () of the final product and the zone will have good dimensional accuracy.