Invention Grant
- Patent Title: Stamped components with reduced hot-forming cycle time
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Application No.: US17889807Application Date: 2022-08-17
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Publication No.: US11781197B2Publication Date: 2023-10-10
- Inventor: Qi Lu , Congjie Wang , Jianfeng Wang , Zhisong Chai , Wei Xu
- Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Applicant Address: US MI Detroit
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Current Assignee Address: US MI Detroit
- Agency: Quinn IP Law
- Priority: CN 2210106684.8 2022.01.28
- Main IPC: C21D9/46
- IPC: C21D9/46 ; C22C38/18 ; C22C38/04 ; C22C38/02 ; C21D8/02 ; C21D6/00 ; B21D22/02

Abstract:
A method of forming a component includes providing a work-piece blank from a formable material. The work-piece blank includes at least one section having a surface roughness greater than 1 μm configured to facilitate efficient radiation of thermal energy therefrom when the work-piece blank is heated. The method also includes austenitizing the work-piece blank via heating the work-piece blank at a predetermined temperature for a predetermined amount of time to achieve an austenite microstructure in the at least one section and forestall oxidation of the work-piece blank. The method additionally includes transferring the austenitized work-piece blank into a forming press. The method also includes forming the component via the forming press from the austenitized work-piece blank. The method additionally includes quenching the component formed from the austenitized work-piece blank and cooling the formed component.
Public/Granted literature
- US20230243012A1 STAMPED COMPONENTS WITH REDUCED HOT-FORMING CYCLE TIME Public/Granted day:2023-08-03
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