| 摘要 |
PURPOSE: To provide a welding method and device for automatically working a strip material having different departure temperature at an almost constant inter-welding clearance temperature. CONSTITUTION: When an actual value Ti of a welding temperature T is larger than a target value Ts, a target value Vs of a feeding speed V of a welder is increased, and when the actual value Ti of the welding temperature T is smaller than the target value Ts, the target value Vs of the above mentioned speed V is decreased. Thus, the actual value Ti of the welding temperature T is used for forming guide amounts for adjusting the above-mentioned speed V, and the adjustment of the welding temperature and the adjustment of the above-mentioned speed are associated with a signal. |
