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US 2013/0074992 A1Published application
Method of manufacturing metal part
AssigneeNHK Spring Co., Ltd.
InventorsRyuichi Kawatake, Takashi Maruyama
Life of this patent
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Abstract
A method of manufacturing a metal part according to the present invention includes heating a shaped product of stainless steel to 600° C. or more in an oxygen-free atmosphere and heat-treating the shaped product in an oxygen atmosphere after the heating.
Claims6
A method of manufacturing a metal part, comprising:
- heating a shaped product, of stainless steel to 600° C. or more in an oxygen-free atmosphere;
- and
- heat-treating the shaped product in an oxygen atmosphere after the heating.
Dependencies are inferred from the claim text.