System and method for estimating true heats of welding processes
US6730875B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 24, 2002 |
| Grant date | May 4, 2004 |
| Priority date | — |
| Expiry date | Oct 24, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K9/0953
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An arc welding apparatus (10) for performing a waveform-controlled arc welding process includes an arc welding torch (14) that interacts with an associated weld. A power supply (12) applies a selected waveform-controlled power to the welding load via the arc welding torch (14) and a grounding cable over a process interval (Tweld). The power supply (12) includes a sampling circuit (34) for sampling instantaneous current and voltage values of the power during a snip portion (Tsnip) of the process interval (Tweld). A processor (40) is designed to (i) compute a true heat over the snip portion (Tsnip) of the process interval (Tweld), and (ii) extrapolate a true heat over the process interval (Tweld) based thereon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.