Welder Red Seal · Question
When performing a root pass on a pipe in the 5G position using an E6010 electrode, a welder observes excessive spatter, an unstable arc, and shallow penetration. The welding machine is set to DC+. What adjustment should the welder primarily consider to improve the weld characteristics?
Excessive spatter, an unstable arc, and shallow penetration with E6010 on DC+ often indicate that the amperage is too high. Decreasing the amperage will help st
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Question: When performing a root pass on a pipe in the 5G position using an E6010 electrode, a welder observes excessive spatter, an unstable arc, and shallow penetration. The welding machine is set to DC+. What adjustment should the welder primarily consider to improve the weld characteristics?
Answer options:
- Increase the amperage ✅ Decrease the amperage
- Switch to AC polarity
- Increase arc length
Correct answer: Decrease the amperage
Explanation: Excessive spatter, an unstable arc, and shallow penetration with E6010 on DC+ often indicate that the amperage is too high. Decreasing the amperage will help stabilize the arc, reduce spatter, and improve penetration control. Switching to AC is generally not recommended for E6010 root passes, and increasing arc length would worsen arc instability and spatter.
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