Method and apparatus for arc welding
US4447703A · kind A · utility
57Cited by
1References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 13, 1981 |
| Grant date | May 8, 1984 |
| Priority date | — |
| Expiry date | Nov 13, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K9/1093
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An arc welding process is provided with a preheating step in which a consumable wire electrode is heated prior to insertion into the electrode stick-out region. This is accomplished by the circulation of current from a preheating power supply through a segment of the wire. Both gas-metal and gas-tungsten arc welding processes are disclosed, along with apparatus used in these processes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.