A sudden change, such as an increase or decrease in voltage or current. In resistance welding, an impulse of welding current consisting of a single pulse, or a series of pulses separated only by an interpulse time. See Figures H-6 and I- 1.
A sudden change, such as an increase or decrease in voltage or current. In resistance welding, an impulse of welding current consisting of a single pulse, or a series of pulses separated only by an interpulse time. See Figures H-6 and I- 1.