Process for forming a deep drawn and ironed pressure vessel having selectively controlled side-wall thicknesses
US4541265A · kind A · utility
18Cited by
43References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 17, 1984 |
| Grant date | Sep 17, 1985 |
| Priority date | — |
| Expiry date | Jul 17, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D22/24
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A process for forming an improved deep drawn and ironed metal shell for use as a pressure vessel having selectively controlled wall thicknesses to impart additional strength to predetermined portions of the improved metal shell. A stepped mandrel is utilized in conjunction with at least one ironing die to fabricate the improved metal shell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.