Resistance welding control system
US4388515A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 19, 1981 |
| Grant date | Jun 14, 1983 |
| Priority date | — |
| Expiry date | Mar 19, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K11/256
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A control system for use with a welding machine controller is provided which senses the dynamic resistance of the weld being formed by the welding machine, and which generates appropriate signals indicating the condition of the weld, which signals may be used for automatically controlling the operation of the controller. The control system of the invention senses the power factor in the primary circuit of the welding transformer included in the welding machine which is a measure of the dynamic resistance of the weld being formed, and the control system produces signals indicating the dynamic resistance of the weld, which signals may be digitized to produce appropriate control signals for the controller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.