Method of heat-treating additively manufactured ferromagnetic components
AssigneeGeneral Electric Company
InventorsFrancis Johnson, Mohamed Osama, Anoop Kumar Jassal, Raghavendra Rao Adharapurapu
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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.
Claims20
A heat-treated ferromagnetic component, comprising:
- 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.
An additively manufactured ferromagnetic component, comprising:
- a plurality of material layers deposited and joined such that the plurality of material layers forms the additively manufactured ferromagnetic component,
- wherein the additively manufactured ferromagnetic component has a unitary structure and a saturation flux density greater than 2 Tesla.
An electric machine, the electric machine comprising:
- a rotor assembly;
- a stator assembly;
- and
- an additively manufactured ferromagnetic component, comprising:
- 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.
Dependencies are inferred from the claim text.