MUMBAI, India, Sept. 14 -- Intellectual Property India has published a patent application (202537069666 A) filed by Saic Gm Wuling Automobile Co. , Ltd. on July 22, 2025, for Edge-Trimming And Punching Method For Hot-Formed Part, And Edge-Trimming And Punching Die.
Inventors include Wei, Wei; Yao, Zuoping; Liu, Chuntai; Lv, Juncheng; Huang, Ming; Zhang, Feng; Wu, Huimei; Zhou, Yingjuan; and Wang, Lina.
The application for the patent was published on September 11, 2026, under issue no. 37/2026.
Abstract: Disclosed in the present invention are an edge-trimming and punching method for a hot-formed part and an edge-trimming and punching die. The method comprises the following steps: S1, performing hot stamping, first quenching, and heat pres...