What type of current does a GTAW power source supply?

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Multiple Choice

What type of current does a GTAW power source supply?

Explanation:
Gas Tungsten Arc Welding relies on a stable arc current to control heat input and arc behavior. A GTAW power source is designed to deliver a constant current, keeping the amperage steady as the arc length and weld pool change. This steady current gives you consistent penetration, bead shape, and overall control of the weld. Some machines can switch to AC for aluminum or offer pulsed modes, but the fundamental mode of the power supply for GTAW is constant current, which is why that option is the best choice.

Gas Tungsten Arc Welding relies on a stable arc current to control heat input and arc behavior. A GTAW power source is designed to deliver a constant current, keeping the amperage steady as the arc length and weld pool change. This steady current gives you consistent penetration, bead shape, and overall control of the weld. Some machines can switch to AC for aluminum or offer pulsed modes, but the fundamental mode of the power supply for GTAW is constant current, which is why that option is the best choice.

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