Method and apparatus for connecting a hollow member to an inner member
US4760234A · kind A · utility
3Cited by
4References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 17, 1986 |
| Grant date | Jul 26, 1988 |
| Priority date | — |
| Expiry date | Dec 17, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K2101/12
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
For connecting a round hollow member (10) of sheet metal tightly to a complementary inner member (12), a force fit is produced in a narrow annular region (25) between these two members (10, 12). Then at least two electrodes (90) are applied to the hollow member (10) from the outside in the annular region and during relative rotation between the electrodes (90) on the one hand and the two members (10, 12) on the other hand, electrical resistance welding is carried out during which the welding current (I) is supplied and drawn off exclusively through the electrodes (90) bearing externally against the hollow member (10).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.