Resistance welding with an electrochemical capacitor as the current power source
US6303894A · kind A · utility
5Cited by
13References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 5, 2000 |
| Grant date | Oct 16, 2001 |
| Priority date | — |
| Expiry date | Jan 5, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K11/26
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A resistance type pulse welding apparatus for workpieces, including a handpiece, a pair of electrodes mounted at the tip of the handpiece adapted for delivering weld current pulses to a workpiece to be welded, an electrochemical capacitor providing a high-current, low-voltage power source, and a triggering means located between the electrochemical capacitor and the electrodes to discharge the energy stored in the electrochemical capacitor through the electrodes upon the sensing of a threshold pressure between the electrodes, indicative of the forcing of the electrodes against the workpiece.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.