Method and apparatus for welding
US6974932B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2003 |
| Grant date | Dec 13, 2005 |
| Priority date | — |
| Expiry date | Aug 1, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K9/095
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for welding include initiating a pulse welding process includes initiating a welding arc by providing CC type welding power, maintaining the arc by providing CV type power. Then, pulse type welding power is provided. The method and system can be used to start short circuit, or other welding processes by providing short circuit power, or welding power of a given mode, instead of providing pulse power. Also, in one alternative, a method and system of initiating a pulse, short circuit, or given welding process includes initiating a welding arc by providing CC type welding power at least until a pseudo-equilibrium for the arc is established. Then, providing welding power in a pulse, short circuit, or the given mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.