IIW IWP Practice Questions - IIW International Welding Practitioner (IWP) Exam

For TIG (GTAW) welding of plain carbon and stainless steels, which current type and polarity is normally used?

AC with high-frequency stabilisation DC electrode positive (DCEP) DC electrode negative (DCEN) Square-wave AC with balance control

DC electrode negative (DCEN)

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