AC pulse arc welding method
US8502114B2 · kind B2 · utility
4Cited by
0References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 24, 2009 |
| Grant date | Aug 6, 2013 |
| Priority date | — |
| Expiry date | Mar 8, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K9/0735
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An AC pulse arc welding method of the present invention sets an appropriate AC frequency based on a wire feed rate and a polarity ratio when the polarity ratio is changed without changing the wire feed rate to control a heat input to a base material, and sets an appropriate straight polarity current value necessary for one drop per pulse from the polarity ratio and the AC frequency in AC pulse welding. The method makes it possible to achieve appropriate AC pulse welding by setting the polarity ratio, and to easily set the welding conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.