Consumable electrode type AC pulse arc welding apparatus
US5990445A · kind A · utility
Inventors
Key dates
| Filing date | Apr 7, 1998 |
| Grant date | Nov 23, 1999 |
| Priority date | — |
| Expiry date | Apr 7, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K9/124
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The consumable electrode type AC pulse arc welding apparatus is configured so that the pulse width setting circuit 16 includes the pulse width setting device 16a for hard wire, the pulse width setting device 16b for soft wire and the switch SW2 for switching the pulse width setting device. Further, the frequency setting device 20 includes the frequency setting device 20a for hard wire, the frequency setting device 20b for soft wire and the switch SW3 for switching the frequency setting device. By switching the switch SW1 when switching wire type, within the pulse width setting devices and the frequency setting devices, the selection between the hard wire side and the soft wire side can be simultaneously switched, thereby welding can be implemented with a suitable welding condition according to the wire type.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.