公开(公告)号：US20250073770A1

公开(公告)日：2025-03-06

申请号：US18777243

申请日：2024-07-18

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Zhou WANG ,  MingFeng SHI ,  Sarah TEDESCO ,  Shane Michael ANDERSON ,  Jason J. CORYELL ,  Daniel BAKER ,  Jianfeng WANG ,  Jiachen PANG ,  Zhen CHEN

IPC: B21D22/02 ,  C21D9/00

Abstract: A method for manufacturing a coating-free press hardening steel (CFPHS) component comprises heating a CFPHS blank at a first predetermined heating rate to a first predetermined temperature in a first predetermined temperature range using a heater; transferring the CFPHS blank to a furnace; soaking the CFPHS blank in the furnace at a second predetermined temperature in a second predetermined temperature range for a predetermined period; and pressing and forming the CFPHS blank in a stamp/press to form a CFPHS component.