Electric arc welder for AC welding with cored electrode
US9956638B2 · kind B2 · utility
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133References
29Claims
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Key dates
| Filing date | May 16, 2014 |
| Grant date | May 1, 2018 |
| Priority date | — |
| Expiry date | Jan 26, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K35/0266
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An electric arc welder having an inverter with a waveform generator that generates a welding waveform with a waveform period and a root mean square (RMS) level for maintaining a stable short welding arc based on at least a cored welding electrode. The electric arc welder having a circuit to adjust a wave balance of the welding waveform to maintain the stable short welding arc, where the wave balance is a ratio between a period of a positive portion of the welding waveform and the waveform period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.