In GTAW-P, the tungsten electrode is the same as in GTAW.

• A. True
• B. Only for AC
• C. False
• D. Only for DC

Answer: (A)

Pulsing the current in GTAW-P changes how heat is delivered to the workpiece, not the electrode itself. The tungsten electrode is a non-consumable parts that shapes and conducts the arc, and its material and geometry are chosen based on the work metal and polarity. Since pulsing doesn’t require a different electrode material, you use the same tungsten setup you’d use in standard GTAW. The pulse just modulates peak and background current to control heat input and penetration, while the electrode remains the same.