Reduction of droplet size for CO2 shielded welding wire
US12168268B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 20, 2021 |
| Grant date | Dec 17, 2024 |
| Priority date | — |
| Expiry date | Aug 10, 2043 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K9/28
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An arc welding system providing improved molten metal droplet transfer. The system includes a welding power source having a welding power supply, a welding waveform generator, and a controller. Two fluxed cored welding wire electrodes are connected to the power source and are powered by the same welding output voltage and current produced by the power source. A feedback circuit is connected to the power source to provide an adaptive response to maintain an average welding output voltage. The controller controls the waveform generator and the power supply to superimpose welding current pulses onto a welding waveform of a CV flux cored arc welding process, that uses CO2 as a shielding gas, to generate a modified waveform of a modified CV flux cored arc welding process. The current pulses are superimposed in time to form molten metal droplets between ends of the two electrodes during the modified welding process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.