Welding T joints on 1/4 flat stock (just playing around). I have notice soot on the weld surface. I have cleaned the material that I'm welding with a wire brush, but I still get a great deal of soot on the weld surface. The weld appearance looks good though. Any help on what I doing wrong would be greatfully accepted.
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Thread: Soot appearance on welds
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08-31-2006, 04:27 PM #1
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Soot appearance on welds
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08-31-2006, 04:41 PM #2
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What welding process are you using.
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08-31-2006, 04:49 PM #3
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Jeez that was stupid, I'm TIG welding using Argon gas and standard mild metal filler rod.
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09-01-2006, 04:40 AM #4
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Check your gas. You be forgetting to turn it on, not haveing enough gas flow, or your gas is bad.
Last edited by MintSScout; 09-01-2006 at 04:54 AM.
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09-01-2006, 05:35 AM #5
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Can to much gas cause this problem too. I checked the gas and it was on but way to high??? made the change and it still still leaves a soot residue on the weld. Do you think the metal has somekind of material on it that is causing the residue. I started welding on another piece of scrap and the weld appearance was good again. All I can determine is the metal I was using had somekind of flim on it or the like.....
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09-01-2006, 01:15 PM #6
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It could of been zinc or candium coated.
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