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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 11168379 B1

PDFFull Text
Date of Patent:
Nov. 09, 2021

Filed:

Feb. 12, 2018

Pre-conditioned alsife coating of boron steel used in hot stamping

Applicant:

Ford Motor Company, Dearborn, MI (US);

Inventors:

Constantin Chiriac, Windsor, CA;

Raj Sohmshetty, Canton, MI (US);

Elizabeth Bullard, Royal Oak, MI (US);

James Engle, Chesterfield, MI (US);

Stephen Kernosky, Livonia, MI (US);

Assignee:

Ford Motor Company, Dearborn, MI (US);

Attorney:

Burris Law, PLLC

Primary Examiner:

Patricia L Hailey

Assistant Examiner:

Christopher D Moody

Int. Cl.
CPC ...
C21D 9/56 (2006.01); C21D 8/02 (2006.01); B21D 22/02 (2006.01); C21D 1/42 (2006.01); C21D 1/26 (2006.01);
U.S. Cl.
CPC ...
C21D 9/56 (2013.01); B21D 22/022 (2013.01); C21D 1/26 (2013.01); C21D 1/42 (2013.01); C21D 8/0221 (2013.01); C21D 8/0247 (2013.01);
Abstract

A process for pre-conditioning a hot stamped part is provided. The process includes continuously annealing a boron steel material having an aluminum coating for a predetermined time and at a predetermined temperature such that less than 10 weight % Iron (Fe) is in the aluminum coating and AlSi pockets are formed in the aluminum coating prior to a subsequent hot stamping process, wherein the predetermined time and temperature are a function of a thickness of the boron steel material.

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Chiriac, Constantin. (2021). Pre-conditioned alsife coating of boron steel used in hot stamping (U.S. Patent No. 11168379). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11168379

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