General Studies · Arc Welding
Why is straight polarity (DCEN) preferred over reverse polarity (DCEP) in certain arc welding applications?
- 1To maximize the electrode melting rate
- 2To improve arc stability in windy conditions
- 3To concentrate more heat (around 67%) at the workpiece for deeper penetration✓
- 4To eliminate slag formation entirely
Correct answer
To concentrate more heat (around 67%) at the workpiece for deeper penetration
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