In pulsed-current mode, what is the higher current state referred to as?

In pulsed-current mode, the higher current state is referred to as pulse current. This mode involves alternating between a high "peak" current and a lower "background" current. The pulse current provides the necessary heat input to weld the material effectively during the peak phase, allowing the welder to control the heat and manage the weld pool more precisely. This approach is especially beneficial when working with thinner materials or in situations where reduced heat input is required to avoid warping or distortion.

Understanding this concept is crucial for effective GTAW, as it enables welders to produce high-quality welds with improved control over the thermal dynamics of the welding process.