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:
Oct. 08, 2024
Filed:
Oct. 10, 2018
Applicant:
Outokumpu Oyj, Helsinki, FI;
Inventors:
Stefan Lindner, Willich, DE;
Claire Heidecker, Duesseldorf, DE;
Assignee:
Outokumpu Oyj, Helsinki, FI;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C21D 9/48 (2006.01); C21D 8/02 (2006.01);
U.S. Cl.
CPC ...
C21D 9/48 (2013.01); C21D 8/0205 (2013.01); C21D 8/0236 (2013.01); C21D 8/0273 (2013.01); C21D 8/0294 (2013.01); C21D 2211/001 (2013.01);
Abstract
The invention relates to a method for partial hardening of a steel sheet by cold deformation, where the partial hardening of a steel is done by a cold deformation with a multi-step rolling and annealing process and in order to have a steel sheet with a homogeneous thickness steel sheet is used with at least two areas having different values in mechanical and/or physical properties in longitudinal direction of the material.