Apparatus to equalize in height, by hammering, the line of welding of longitudinally welded tubes
US4326398A · kind A · utility
10Cited by
3References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 12, 1979 |
| Grant date | Apr 27, 1982 |
| Priority date | — |
| Expiry date | Dec 12, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21C37/0811
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An apparatus for flattening the weld bead of longitudinally welded tubes consisting of a hammering mass impacting with a frequency greater than 2500 impacts per minute and an anvil having an elastomer bushing at each end.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.