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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 10946444 B1

PDFFull Text
Date of Patent:
Mar. 16, 2021

Filed:

Apr. 10, 2018

Method of heat-treating additively manufactured ferromagnetic components

Applicant:

General Electric Company, Schenectady, NY (US);

Inventors:

Francis Johnson, Clifton Park, NY (US);

Mohamed Osama, Bayern, DE;

Anoop Kumar Jassal, Schenectady, NY (US);

Raghavendra Rao Adharapurapu, Ka, IN;

Assignee:

GENERAL ELECTRIC COMPANY, Schenectady, NY (US);

Attorney:

Dority & Manning, P.A.

Primary Examiner:

Vanessa T Luk

Int. Cl.
CPC ...
B22F 3/105 (2006.01); B33Y 10/00 (2015.01); B22F 3/24 (2006.01); H01F 41/04 (2006.01); B33Y 40/00 (2020.01); H01F 1/20 (2006.01); B33Y 80/00 (2015.01); C21D 1/26 (2006.01); H02K 1/02 (2006.01); H02K 15/00 (2006.01); H02K 15/12 (2006.01); C21D 6/00 (2006.01); C21D 9/02 (2006.01); H02K 15/02 (2006.01); H02K 7/00 (2006.01); C22C 19/07 (2006.01); C22C 1/04 (2006.01); B22F 5/00 (2006.01); C22C 33/02 (2006.01);
U.S. Cl.
CPC ...
B22F 3/1055 (2013.01); B22F 3/24 (2013.01); B33Y 10/00 (2014.12); B33Y 40/00 (2014.12); B33Y 80/00 (2014.12); C21D 1/26 (2013.01); C21D 6/007 (2013.01); C21D 9/02 (2013.01); H01F 1/20 (2013.01); H01F 41/04 (2013.01); H02K 1/02 (2013.01); H02K 15/00 (2013.01); H02K 15/02 (2013.01); H02K 15/12 (2013.01); B22F 2003/248 (2013.01); B22F 2005/004 (2013.01); B22F 2301/35 (2013.01); B22F 2999/00 (2013.01); C21D 2201/00 (2013.01); C22C 1/0433 (2013.01); C22C 1/0491 (2013.01); C22C 19/07 (2013.01); C22C 33/0285 (2013.01); H02K 7/003 (2013.01);
Abstract

A method of heat-treating an additively-manufactured ferromagnetic component is presented and a related ferromagnetic component is presented. A saturation flux density of a heat-treated ferromagnetic component is greater than a saturation flux density of an as-formed ferromagnetic component. The heat-treated ferromagnetic component is further characterized by a plurality of grains such that at least 25% of the plurality of grains have a median grain size less than 10 microns and 25% of the plurality of grains have a median grain size greater than 25 microns.

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