Controlling resistance-welding machines with electrode caps comprises carrying out uncontrolled welding operation before milling caps, carrying out monitored operation after milling and comparing difference in results with desired values

摘要

Control method for resistance-welding machines with electrode caps comprises carrying out an uncontrolled reference welding operation after the caps are fitted and before they are milled. The caps are then milled and a monitored welding operation carried out using the same parameters as the reference operation. The difference in results between the two is determined and used to calculate actual operating conditions. These are compared with desired conditions and used in controlling the machine.