![]() Prevent excessive local heating by distributing welding.Study structure and develop a definite sequence of welding.It is sometimes helpful before welding to perform removal of rolling or forming strains by stress relieving.For heavy structures preheating is desirable.Peen the deposited metal while still hot.Preform or separate parts so as to allow for weld shrinkage.Properly clamp parts or tack weld parts to resist shrinkage.Use a speed tip and weld at constant speed.Overheating due to short between nozzle and electrodeĪrc Weld Troubleshooting by Problem Distortion.Changes in voltage due to use of other equipment in shop or incorrect voltage.Gas coverage issues (insufficient gas flow causes electrode and part contamination).Materials and filler rods that aren’t clean.Moisture in the air can also cause problems. Use of low quality shielding gas with a moisture level that is too high. ![]() Simply find the problem in the table of contents on the left or match one of our many illustrations to the problem.Ĭonditions that often result in problems include: This arc weld troubleshooting guide is easy to use. ![]()
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