Method and system for automatically terminating a MIG welding operation
US4443687A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 12, 1982 |
| Grant date | Apr 17, 1984 |
| Priority date | — |
| Expiry date | Feb 12, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K9/10
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method and control circuit for terminating a consumable electrode electric arc welding operation which comprises monitoring the welding parameters of the wire drive motor speed and the arc working voltage, comparing the monitored levels with a multiple number of present combinations of both arc working voltage and motor speed with at least one preset combination defining a high arc working voltage representing a long arc condition and with the last preset combination including a motor speed of relatively close to zero; evaluating each preset combination in tandum to determine if the conditions of a preset combination are satisfied and interrupting the power supplied to the arc in response to the satisfied combination of preset conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.