Tag: dirty TIG weld

TIG Filler Rod Contamination Problems: Porosity, Dirty Welds, Black Tungsten, and Wrong Alloy Checks

If TIG filler rod is contaminated, the weld can show porosity, black specks, gray bead color, soot, oxide islands, unstable arc behavior, or cracking even when the tungsten and argon flow look…
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May 20, 2026
TIG Tungsten Contamination Troubleshooting: Black Specks, Arc Wander, Dirty Starts, and Re-Grind Checks

TIG tungsten contamination usually comes from one of five places: the tungsten touched the puddle, the filler rod hit the electrode, shielding gas was interrupted, the tungsten was ground on a dirty…
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May 17, 2026

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Tag: dirty TIG weld

TIG Filler Rod Contamination Problems: Porosity, Dirty Welds, Black Tungsten, and Wrong Alloy Checks

TIG Tungsten Contamination Troubleshooting: Black Specks, Arc Wander, Dirty Starts, and Re-Grind Checks