Welding power supply for pulsed spray welding
US6204476A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 12, 1999 |
| Grant date | Mar 20, 2001 |
| Priority date | — |
| Expiry date | May 12, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K2103/10
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An arc welding machine is disclosed for providing a continuous feed electrode to a weld site. The arc welding machine includes a line frequency transformer having a primary winding, a first secondary winding, and a second secondary winding (e.g., an extension winding, a separate winding, etc.). The first secondary winding provides a welding power having a first voltage at a welding power output terminal. The second secondary winding provides a second welding power having a second higher voltage at an input terminal of a switch, the switch being controlled to provide a pulsed power at the welding power output terminal. According to one feature, the arc welding machine produces a pulsed power having a fixed pulse width and a fixed frequency, the fixed pulse width and fixed frequency being substantially free of operator adjustment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.