What polarity is used with FCAW

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Multiple Choice

What polarity is used with FCAW

Explanation:
Flexibility in polarity is a hallmark of FCAW because the flux-core wire provides its own shielding, so the process isn’t tied to a single polarity. You can run FCAW on direct current with either electrode positive (DC+) or electrode negative (DC-), depending on the wire and the desired weld characteristics. AC is not required as the standard practice, which is why options that lock you to AC or to just one DC direction aren’t as accurate. In short, FCAW supports both DC+ and DC-, making that choice the best answer.

Flexibility in polarity is a hallmark of FCAW because the flux-core wire provides its own shielding, so the process isn’t tied to a single polarity. You can run FCAW on direct current with either electrode positive (DC+) or electrode negative (DC-), depending on the wire and the desired weld characteristics. AC is not required as the standard practice, which is why options that lock you to AC or to just one DC direction aren’t as accurate. In short, FCAW supports both DC+ and DC-, making that choice the best answer.

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