INVERTER TYPE DC RESISTANCE SPOT WELDING MACHINE

摘要

PROBLEM TO BE SOLVED: To provide an inverter type DC resistance spot welding machine capable of performing the welding of high quality by forming the welding current waveform most suitable for a material and a shape of a work.;SOLUTION: The spot welding machine has a rewritable welding condition storage unit 131 for dividing the total conduction period per unit spot welding into a plurality of continuous parts, and storing the current value and the time for each part, and a welding condition input operation unit 132A for optionally setting/changing the current value and the time of all parts or a part thereof for each part. The current value and the time for each part input by the welding condition input operation unit 132A are stored in the welding condition storage unit 131, and electrode moving mechanisms 112, 140 and an inverter type DC conduction circuit 150 are operated based on the current value and the time of each part stored in the welding condition storage unit 131.;COPYRIGHT: (C)2007,JPO&INPIT