Electric arc welder and method of designing waveforms therefor
US6717108B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 24, 2002 |
| Grant date | Apr 6, 2004 |
| Priority date | — |
| Expiry date | Sep 24, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K9/1062
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method of designing a series of waveforms for current cycles generated by a waveform generator to control the waveforms of a welding process performed by an electric arc welder, where the waveforms are stored in a memory stack by work points. The method comprises: integrating the arc current of the waveform designed for each of the many work points to obtain an integrated amount; plotting the integrated amounts for each of the work points; creating a regression curve statistically matching the plotted amounts to reveal outlier amounts; selecting an outlier amount; and, changing the waveform corresponding to the selected outlier amount to decrease the deviation of the integrated amount of the changed waveform from the regression curve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.