公开(公告)号：US20250066868A1

公开(公告)日：2025-02-27

申请号：US18468256

申请日：2023-09-15

Applicant: GM Global Technology Operations LLC

Inventor： Sarah Tedesco ,  Mingfeng Shi ,  Jianfeng Wang ,  Zhou Wang ,  Jason J. Coryell ,  Jiachen Pang ,  Zhen Chen ,  Shane Michael Anderson ,  Daniel Baker

IPC: C21D1/42 ,  C21D6/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/18

Abstract: A method to achieve variable properties of a component using a coating free press hardened steel comprises: transferring a blank of a coating free press hardened steel (CFPHS) material having base blank properties into a heating unit having multiple induction heating coils; heating the blank within the heating unit to create a modified blank having differing modified blank properties throughout the modified blank compared to base blank properties; moving the modified blank out of the heating unit into a die; and forming a shaped part by operation of the die creating a finished CFPHS part.