9-14. Troubleshooting − Waviness Of Bead
Waviness Of Bead − weld metal that is not parallel and does not cover joint formed by base metal.
Possible Causes | Corrective Actions |
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Welding wire extends too far out of nozzle. | Be sure welding wire extends not more than 1/2 in. (13 mm) beyond nozzle. |
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Unsteady hand. | Support hand on solid surface or use two hands. |
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9-15. Troubleshooting − Distortion
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| Distortion − contraction of weld metal during welding that forces |
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| base metal to move. |
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| Base metal moves | |
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| in the direction of | |
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| the weld bead. | |
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| Possible Causes |
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Excessive heat input. |
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| Use restraint (clamp) to hold base metal in position. | ||
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| Make tack welds along joint before starting welding operation. |
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| Select lower voltage range and/or reduce wire feed speed. |
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| Increase travel speed. |
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| Weld in small segments and allow cooling between welds. |
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