Tag: tig troubleshooting
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TIG Ceramic Cup Cracking Causes: Thermal Shock, Over-Tightening, Gas Lens Fit, and Torch Heat
If a TIG ceramic cup cracks, breaks in a clean ring, chips at the end, splits at the base, or keeps failing after short welds, do not treat it as a random…
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TIG Collet Body Overheating Symptoms: Hot Torch Front End, Black Tungsten, Arc Wander, and Gas Lens Damage
If a TIG collet body overheats, the torch front end may run hot, the tungsten may discolor, the arc may wander, the cup may crack, or the electrode may loosen after a…
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TIG Torch Gas Leak Troubleshooting: Argon Loss, Black Tungsten, Porosity, and Torch Seal Checks
If a TIG torch has a gas leak, the weld may show black tungsten, gray weld color, porosity, sugaring on stainless, unstable starts, or a loud uneven gas hiss even when the…
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TIG Arc Starting Problems and Fixes: Hard Starts, Arc Wander, HF Start Failure, and Contaminated Tungsten
TIG arc starting problems usually come from tungsten condition, work clamp contact, gas coverage, torch setup, or start-mode settings before they come from a failed machine. If the arc will not start,…
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TIG Post-Flow Setting Troubleshooting: Black Tungsten, Porosity, Gas Waste, and Torch Cooling
TIG post-flow is the shielding gas that keeps flowing after the arc stops. If it is too short, the hot tungsten and cooling weld crater are exposed to air, causing black, blue,…
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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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Square Wave 205 TIG Cup Size Selection Guide: Standard Cup, Gas Lens, and Stickout Checks
For a Lincoln Square Wave 205 TIG setup, cup size controls how well argon shields the tungsten and weld puddle. Use a smaller cup when access is tight, amperage is low, and…