Method for quick gas bulging forming of hot metal sheet
US10710139B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 15, 2019 |
| Grant date | Jul 14, 2020 |
| Priority date | — |
| Expiry date | Aug 15, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D53/045
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.