Polarity Recommendation Calculator

Determine recommended electrode polarity (DCEP, DCEN, AC) by welding process, electrode type, and material

Input Parameters

Results

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Recommended Polarity
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Penetration Profile
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Heat Balance (Work %)
%
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Additional Notes
Note: Polarity affects penetration, deposition rate, and arc stability. Wrong polarity can cause porosity, lack of fusion, and unstable arc.

Reference

Polarity & Heat Distribution: DCEP (DC+): ~70% heat at work, deep penetration DCEN (DC-): ~30% heat at work, shallow penetration, faster melt-off AC: 50/50 heat balance, oxide cleaning on EP half-cycle GMAW: Always DCEP | GTAW: DCEN for steel, AC for aluminum