Welder Red Seal · Question
During a root pass using an E6010 electrode on a V-groove butt joint in the 2G position (horizontal pipe), the welder notices the molten puddle is consistently sagging down. The machine is set to 95 A with DCEP. What is the most likely cause of this issue?
A sagging puddle, especially in a horizontal position, indicates too much heat input or insufficient travel speed, allowing gravity to pull the molten metal dow
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Question: During a root pass using an E6010 electrode on a V-groove butt joint in the 2G position (horizontal pipe), the welder notices the molten puddle is consistently sagging down. The machine is set to 95 A with DCEP. What is the most likely cause of this issue?
Answer options:
- The amperage is too low, leading to lack of fusion. ✅ The travel speed is too slow, causing excessive heat input.
- The electrode angle is too shallow, pushing the puddle.
- The electrode is too large for the root opening.
Correct answer: The travel speed is too slow, causing excessive heat input.
Explanation: A sagging puddle, especially in a horizontal position, indicates too much heat input or insufficient travel speed, allowing gravity to pull the molten metal downwards before it solidifies. Increasing travel speed or slightly reducing amperage would help.
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