Rotary arc-welding method
US4441011A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 2, 1982 |
| Grant date | Apr 3, 1984 |
| Priority date | — |
| Expiry date | Jul 2, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K9/0216
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A welding method comprises rotating a nozzle (3) provided with a welding electrode (9) eccentrically from the center axial line (a) thereof within a groove (2). The center axial line (a) of the nozzle is aligned with the center of the groove (2) by smoothing values of variation in welding current or welding voltage for each of the left and right half cycles of the nozzle and controllably moving the nozzle horizontally at right angles to the welding direction so that the difference between these values becomes null. The height of the nozzle (3) relative to the groove (2) is maintained at a prescribed distance by smoothing values of variation in welding current or welding voltage and controllably moving vertically the nozzle (3) so that the difference between the thus smoothed value and a set value becomes null.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.