METHOD OF AUTOMATIC CONTROL OF SPOT WELDING PARAMETERS ON MULTIPLE-TRANSFORMER RESISTANCE WELDING MACHINE Russian patent published in 1998 - IPC

FIELD: welding. SUBSTANCE: welding parameters are successively measured by current sensors with use of measuring instruments. One current sensor is installed in primary circuit or common current lead-in of secondary winding of each transformer to which several secondary circuits are connected, and automatic control of welding parameters is performed for each spot. EFFECT: possibility to use individual mode of welding and automatic control with automatic regulation of welding parameters for each spot. 1 dwg