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. 30, 2022

Filed:

May. 02, 2018
Applicant:

Ford Global Technologies, Llc, Dearborn, MI (US);

Inventors:

Raj Sohmshetty, Canton, MI (US);

Constantin Chiriac, Windsor, CA;

S. George Luckey, Jr., Dearborn, MI (US);

Feng Ren, West Bloomfield, MI (US);

Ilya Popov, Aachen, DE;

Assignee:

Ford Global Technologies, LLC, Dearborn, MI (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C21D 9/46 (2006.01); C22C 38/02 (2006.01); C21D 8/02 (2006.01); C21D 6/00 (2006.01); C22C 38/04 (2006.01); C21D 1/673 (2006.01); B21D 37/01 (2006.01); B21D 22/02 (2006.01); C22C 38/46 (2006.01); C22C 38/44 (2006.01);
U.S. Cl.
CPC ...
C21D 9/46 (2013.01); B21D 37/01 (2013.01); C21D 1/673 (2013.01); C21D 6/004 (2013.01); C21D 6/005 (2013.01); C21D 6/008 (2013.01); C21D 8/0205 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/44 (2013.01); C22C 38/46 (2013.01); B21D 22/022 (2013.01);
Abstract

A method of quenching a press hardenable steel (PHS) is provided. The method includes preparing a die having a material with a thermal conductivity of at least 40W/(m·K) and placing a blank within the die and simultaneously hot stamping and quenching the blank at a heat transfer coefficient of at least 2,950W/(m·K). In one form, the step of hot stamping the blank is carried out with greater than 20 MPa of contact pressure between the die and the blank. In another form, the step of hot stamping the blank is carried out with 31 MPa of contact pressure between the die and the blank.


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