Welding guides
Parts, troubleshooting, equipment, and life in the trade. Browse by topic or search below.
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TIG Torch Consumable Wear Signs: Cup Cracks, Collet Slip, Gas Lens Clogs, and Dirty Tungsten
Worn TIG torch consumables usually show up as dirty tungsten, rough arc starts, porosity, black soot, poor gas coverage, tungsten slipping, cup cracking, and inconsistent bead color. The problem is often not…
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TIG Tungsten Balling Causes on AC Welding: Aluminum Setup, AC Balance, Amperage, and Electrode Choice
TIG tungsten balls on AC because the electrode is getting too hot at the tip. A small controlled ball can be normal on older transformer-style AC aluminum welding, especially with pure or…
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TIG Shielding Gas Coverage Troubleshooting: Porosity, Soot, Tungsten Color, and Cup Setup
Poor TIG shielding gas coverage shows up as porosity, gray or black weld color, dirty tungsten, unstable arc starts, sugaring on stainless, and oxidation around the bead. The most common causes are…
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MIG Diffuser Clogging Symptoms: Porosity, Burnback, Spatter Buildup, and Poor Gas Coverage
A clogged MIG diffuser usually shows up as porosity, unstable arc starts, extra spatter, fast nozzle buildup, contact tip overheating, and repeated burnback. The diffuser sits behind the nozzle and routes shielding…
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Do Welding Helmet Cover Lenses Block UV, or Is the ADF Doing That?
A clear welding helmet cover lens is mainly a sacrificial protection plate. It protects the auto-darkening filter, fixed shade plate, and viewing area from spatter, grinding dust, scratches, smoke film, and impact…
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MIG Ground Clamp Connection Problems: Arc Sputter, Heat, Poor Starts, and Weak Current Return
A bad MIG ground clamp connection causes arc instability, poor starts, extra spatter, weak penetration, burnback, and random sputtering even when voltage and wire speed look correct. The work clamp is not…
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MIG Weld Spatter Reduction Troubleshooting: Settings, Gas, Stickout, Wire, and Gun Checks
Excessive MIG spatter usually comes from an unstable arc, not from one single bad part. Start with the high-impact checks: voltage and wire-feed-speed balance, shielding gas coverage, wire stickout, base-metal cleanliness, contact…
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Millermatic 212 Erratic Wire Feed Causes: Drive Rolls, Liner, Tip, and Gun Checks
If a Millermatic 212 feeds wire erratically, surges, slips, birdnests, burns back into the tip, or starts a bead clean and then stutters, start with the wire path before blaming the control…
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Aluminum MIG Wire Feeding Problems: Birdnesting, Burnback, Shaving, and Drive Roll Setup
Aluminum MIG wire feeding problems usually start because aluminum wire is soft and does not push through a standard MIG gun like steel wire. Birdnesting, slipping drive rolls, shaved wire, burnback, and…
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MIG Gun Neck Overheating Causes: Contact Tip, Diffuser, Duty Cycle, and Cable Problems
A MIG gun neck overheats when heat cannot leave the front end fast enough or when electrical resistance builds at the contact tip, diffuser, neck, cable, or work return. The most common…