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.

Date of Patent:
Aug. 02, 2022

Filed:

Jan. 14, 2016
Applicant:

Hyundai Steel Company, Dong-gu, KR;

Inventors:

Byung Gil Yoo, Gyeonggi-Do, KR;

Seung Ha Lee, Chungcheongnam-Do, KR;

Hyeong-Hyeop Do, Chungcheongnam-Do, KR;

Chee Woong Song, Seoul, KR;

Assignee:

Hyundai Steel Company, Incheon, KR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21D 22/20 (2006.01); B21D 37/16 (2006.01); B21D 53/88 (2006.01); C22C 38/28 (2006.01); C21D 8/04 (2006.01); C22C 38/26 (2006.01); C22C 38/38 (2006.01); C22C 38/32 (2006.01); B21B 3/00 (2006.01);
U.S. Cl.
CPC ...
B21D 22/208 (2013.01); B21B 3/00 (2013.01); B21D 22/20 (2013.01); B21D 37/16 (2013.01); B21D 53/88 (2013.01); C21D 8/04 (2013.01); C22C 38/26 (2013.01); C22C 38/28 (2013.01); C22C 38/32 (2013.01); C22C 38/38 (2013.01); C21D 8/0426 (2013.01); C21D 8/0436 (2013.01); C21D 8/0473 (2013.01);
Abstract

A method for producing a molded article includes the steps of: preparing a first steel plate and a second steel plate. The first steel plate and the second steel plate are joined to each other, thereby preparing a joined steel plate. The joined steel plate is heated at a temperature between 910° C. and 950° C. The heated joined steel plate is then subjected to hot-press molding, thereby preparing an intermediate molded article; and cooling the intermediate molded article, wherein the first steel plate has a tensile strength (TS) higher than that of the second steel plate.


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