Invention Publication
- Patent Title: METHODS FOR PREPARING HIGH PERFORMANCE PRESS-HARDENED STEEL COMPONENTS
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Application No.: US17965312Application Date: 2022-10-13
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Publication No.: US20240052445A1Publication Date: 2024-02-15
- Inventor: Zhisong CHAI , Tingdong REN , JinLong ZHU , Wei XU , Jianfeng WANG
- Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC , NORTHEASTERN UNIVERSITY
- Applicant Address: US MI Detroit
- Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC,NORTHEASTERN UNIVERSITY
- Current Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC,NORTHEASTERN UNIVERSITY
- Current Assignee Address: US MI Detroit; CN MI Shenyang
- Priority: CN 2210944339.1 2022.08.08
- Main IPC: C21D1/673
- IPC: C21D1/673 ; C21D1/18 ; B21D22/02 ; C22C38/02 ; C22C38/04 ; C22C38/18

Abstract:
A method for preparing a press-hardened steel component is provided. The method includes forming a heated blank by heating a steel alloy blank to a first temperature in a first zone of a furnace having two or more zones, and after the heating of the steel alloy blank to the first temperature, heating the steel alloy blank to a second temperature in a second zone of the furnace. The second temperature is greater than the first temperature. The first zone has a first flow rate for a protective gas, and the second zone has a second flow rate for the protective gas that is greater than the first flow rate. The method further includes stamping and quenching the heated blank at a constant rate to a temperature between a martensite finish temperature of the steel alloy defining the steel alloy blank and room temperature to form the press-hardened steel component.
Public/Granted literature
- US11913085B1 Methods for preparing high performance press-hardened steel components Public/Granted day:2024-02-27
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