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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.:

US 9340233 B1

PDFFull Text
Date of Patent:
May. 17, 2016

Filed:

Sep. 12, 2011

Method for producing a hot-formed and press-hardened metal component

Applicants:

Markus Pellmann, Sassenberg, DE;

Johannes Böke, Blomberg, DE;

Inventors:

Markus Pellmann, Sassenberg, DE;

Johannes Böke, Blomberg, DE;

Assignee:

BENTELER AUTOMOBILTECHNIK GMBH, Paderborn, DE;

Attorney:

Henry M. Feiereisen LLC

Primary Examiner:

Roy King

Assistant Examiner:

Caitlin Kiechle

Int. Cl.
CPC ...
B62D 25/04 (2006.01); B62D 25/08 (2006.01); C21D 1/20 (2006.01); C21D 1/673 (2006.01); C21D 8/02 (2006.01); C21D 8/04 (2006.01); C22C 1/02 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/14 (2006.01); C22C 38/32 (2006.01); C21D 8/00 (2006.01);
U.S. Cl.
CPC ...
B62D 25/04 (2013.01); B62D 25/08 (2013.01); C21D 1/20 (2013.01); C21D 1/673 (2013.01); C21D 8/005 (2013.01); C21D 8/0205 (2013.01); C21D 8/04 (2013.01); C22C 1/02 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/14 (2013.01); C22C 38/32 (2013.01); C21D 2211/002 (2013.01); C21D 2211/008 (2013.01); C21D 2221/00 (2013.01);
Abstract

The present invention relates to a method for producing a hot-formed and press-hardened metal component for an automobile having at least two regions of different hardness. A hardenable sheet-metal blank is heated to at least an austenizing temperature and a first region of the sheet-metal blank is intermediately cooled at a cooling speed greater than the lower critical cooling speed of the material of the sheet-metal blank. The sheet-metal blank is then hot-formed and press-hardened in a press-hardening tool by quenching the first region from a bainitic structure transformation stage, thereby adjusting a mixed structure of martensite and bainite in the first region.

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