Method and system to control heat input in a welding operation
US9333582B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 12, 2013 |
| Grant date | May 10, 2016 |
| Priority date | — |
| Expiry date | Apr 8, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K9/173
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A system for and method of controlling the heat input in a welding operation are provided. The system includes an arc welding power supply configured to output a welding waveform to a welding torch. The welding power supply includes a waveform generator to generate an output welding waveform. The power supply also includes a controller to optimize the output welding waveform based on one of a desired RMS voltage set point and a desired RMS voltage range. The optimization is performed by adjusting at least one of a power ratio and a duration ratio. The power ratio is a ratio of a power of a negative portion of the welding waveform to a power of a positive portion of the welding waveform, and the duration ratio is a ratio of a duration of a negative portion of the welding waveform to a duration of a positive portion of the welding waveform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.