METHOD FOR MONITORING A TANDEM WELDING PROCESS, TANDEM WELDING APPARATUS AND TANDEM WELDING METHOD

摘要

The present invention relates to a tandem welding apparatus including a plurality of tandem electrodes (12, 14, 16, 18) at predetermined intervals arranged to move to the moving speed of the common. A plurality of tandem electrodes (12, 14, 16, 18) at a predetermined interval to execute the welding cooperatively. Data storage medium 74 stores the measured data for each electrode during the performing the welding. The processor 110 includes a plurality of tandem that with the predetermined interval to calculate the welding parameters of the tandem welding system at the steps of recalled measured data corresponding to the electrode passing a reference position, for each electrode, the reference position electrodes ( 12, 14, 16, and executes a process including the step of combining the recalled measured data of the above 18).