Method of forging a solid head on a hollow steel tube
US3968919A · kind A · utility
3Cited by
1References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 2, 1975 |
| Grant date | Jul 13, 1976 |
| Priority date | — |
| Expiry date | Apr 2, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21K23/04
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method of forging a solid flanged head on a hollow steel tube by positioning a cylindrical steel plug within a steel tube of the same grade, and extending said positioned cylindrical plug beyond the end of the tube, thereafter heating the end of the tube and plug beyond the critical temperature of the steel material, and thereafter forging the softened material so that a solid steel head is formed which extends beyond the continuous wall of the steel tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.