Hydroforming die assembly for pinch-free tube forming
US5979201A · kind A · utility
12Cited by
6References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 21, 1997 |
| Grant date | Nov 9, 1999 |
| Priority date | — |
| Expiry date | Aug 21, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D22/025
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A die assembly having die structures that are cooperable to define a die cavity into which a metallic tubular blank can be disposed. A first die structure is moveable to seal the die cavity, and after the die cavity is sealed, the first and second die structures are moveable to reduce the cross-sectional area of the die cavity and thereby deform the metallic tubular blank within the die cavity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.