OM-219 806 Page 376-14. Troubleshooting − Waviness Of BeadWaviness Of Bead − weld metal that is not parallel and does not coverjoint formed by base metal.S-0641Possible Causes Corrective ActionsWelding wire extends too far out of nozzle. Be sure welding wire extends not more than 1/2 in (13 mm) beyond nozzle.Unsteady hand. Support hand on solid surface or use two hands.6-15. Troubleshooting − DistortionDistortion − contraction of weld metal during welding that forcesbase metal to move.Base metal movesin the direction ofthe weld bead. S-0642Possible Causes Corrective ActionsExcessive heat input. Use restraint (clamp) to hold base metal in position.Make tack welds along joint before starting welding operation.Select lower voltage range and/or reduce wire feed speed.Increase travel speed.Weld in small segments and allow cooling between welds.
