Drawn arc welding
US9463522B2 · kind B2 · utility
0Cited by
55References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 5, 2012 |
| Grant date | Oct 11, 2016 |
| Priority date | — |
| Expiry date | Apr 27, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49968
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A drawn arc welding assembly and method for simultaneously welding a stud to a first workpiece and a second workpiece that are affixed together and have an electrically insulating joining layer between the workpieces. A pair of leads attach to the first workpiece and the second workpiece, with electrically opposite diodes connected between the leads and a power supply. The power supply also provides power to a stud. During welding, two arcs are simultaneously maintained between the stud and first workpiece and between the stud and second workpiece. The power supply may be chopped AC from a dual inverter power supply.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.