公开(公告)号：US20190060970A1

公开(公告)日：2019-02-28

申请号：US15982042

申请日：2018-05-17

Applicant: Harbin Institute of Technology

Inventor： Shijian YUAN ,  Zhubin He ,  Xiaobo Fan ,  Mingqu Ding ,  Guofeng Han

IPC: B21D26/027 ,  B21D26/025 ,  B21D26/055 ,  B21D37/16

Abstract: Provided is a method for quick forming of a hot metal sheet. The method relates to a technology for forming a metal sheet part, and solves the problem that the existing hot metal sheet forming technology cannot ensure that a blank is deformed under reasonable temperature and pressure conditions, thereby failing to realize precise and quick forming of a complex metal sheet part, especially a thin-walled part. The method mainly includes the following steps: step one, placing a metal sheet blank to be formed on a forming mold; step two, introducing high-pressure gases with equal pressures simultaneously into upper and lower enclosed cavities respectively formed by the metal sheet blank and the sealing mold, and the metal sheet blank and the forming mold; step three, heating the metal sheet blank to a preset forming temperature condition; step four, quickly releasing the high-pressure gas from the cavity formed by the metal sheet blank and the forming mold, such that the metal sheet blank bulges; and step five, discharging the gas from the cavity formed by the metal sheet blank and the sealing mold, and opening the mold to obtain a formed metal sheet part. The present invention is used for manufacturing a metal sheet part.

公开(公告)号：US10710139B2

公开(公告)日：2020-07-14

申请号：US16541583

申请日：2019-08-15

Applicant: HARBIN INSTITUTE OF TECHNOLOGY

Inventor： Shijian Yuan ,  Zhubin He ,  Xiaobo Fan ,  Mingqu Ding ,  Guofeng Han

IPC: B21D26/027 ,  B21D26/025 ,  B21D26/055 ,  B21D37/16 ,  B21D53/04 ,  B21D26/029

Abstract: A method for quick forming of a metal sheet. In an embodiment, the method includes the following steps: placing a metal sheet blank to be formed on a forming mold; introducing high-pressure gases with equal pressures simultaneously into upper and lower enclosed cavities respectively formed by the metal sheet blank and the sealing mold, and the metal sheet blank and the forming mold; heating the metal sheet blank to a preset forming temperature condition; quickly releasing the high-pressure gas from the cavity formed by the metal sheet blank and the forming mold, such that the metal sheet blank bulges; and discharging the gas from the cavity formed by the metal sheet blank and the sealing mold, and opening the mold to obtain a formed metal sheet part.