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公开(公告)号：US12012641B2
公开(公告)日：2024-06-18
申请号：US17101243
申请日：2020-11-23
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Shane M. Anderson , Charles Enloe , Qi Lu , Jason J. Coryell , Adam D. Hodges
IPC: C21D9/48 , B21D22/02 , B21D26/053 , B21D43/10 , B25J9/02 , B25J15/00 , C21D1/42 , H05B1/02 , H05B3/00 , H05B6/10
CPC classification number: C21D9/48 , B21D22/022 , B21D26/053 , B21D43/105 , C21D1/42 , H05B1/023 , H05B3/0023 , H05B6/101 , B25J9/02 , B25J15/0028 , B25J15/0052 , C21D2211/001
Abstract: A method of forming a component includes providing a work-piece blank from a formable material. The method also includes engaging the work-piece blank with a transfer device. The method additionally includes austenitizing the work-piece blank in the transfer device via heating the blank to achieve austenite microstructure therein. The method also includes transferring the austenitized blank to a forming press using the transfer device. The method additionally includes forming the component via the forming press from the austenitized blank and quenching the formed component. A work-piece blank transfer system includes a transfer device having clamping arm(s) for engaging, holding, transferring, and releasing the work-piece blank. The transfer device also includes a heating element configured to austenitize the work-piece blank via heating the blank to achieve austenite microstructure therein. The transfer system additionally includes an electronic controller programmed to regulate the heating element and the clamping arm(s).
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公开(公告)号：US20220162721A1
公开(公告)日：2022-05-26
申请号：US17101243
申请日：2020-11-23
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Shane M. Anderson , Charles Enloe , Qi Lu , Jason J. Coryell , Adam D. Hodges
Abstract: A method of forming a component includes providing a work-piece blank from a formable material. The method also includes engaging the work-piece blank with a transfer device. The method additionally includes austenitizing the work-piece blank in the transfer device via heating the blank to achieve austenite microstructure therein. The method also includes transferring the austenitized blank to a forming press using the transfer device. The method additionally includes forming the component via the forming press from the austenitized blank and quenching the formed component. A work-piece blank transfer system includes a transfer device having clamping arm(s) for engaging, holding, transferring, and releasing the work-piece blank. The transfer device also includes a heating element configured to austenitize the work-piece blank via heating the blank to achieve austenite microstructure therein. The transfer system additionally includes an electronic controller programmed to regulate the heating element and the clamping arm(s).
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公开(公告)号：US20220314377A1
公开(公告)日：2022-10-06
申请号：US17223373
申请日：2021-04-06
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： MingFeng Shi , Adam D. Hodges , Carlos E. Prado , Jason J. Coryell
Abstract: A sheet blank includes a core substrate having a generally planar shape with opposed first and second sides. The core substrate is made of high-strength steel containing at least two of ferrite, martensite, bainite, and austenite and having an ultimate tensile strength of at least 490 MPa. A respective decarburized layer of the high-strength steel is formed on each of the first and second sides of the core substrate, wherein each respective decarburized layer contains a minimum ferrite content of at least 80 volume % ferrite and has a respective thickness of 5 to 100 microns. A respective transition layer of the high-strength steel may be formed between the core substrate and each respective decarburized layer, with each transition layer having a respective inner transition layer abutting the core substrate and a respective outer transition layer abutting the respective decarburized layer.
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