Welding Certification test Q&A and tips and tricks
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Rocko2527
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    Wed Mar 16, 2016 9:07 am

I'm getting a lot of glass on my tig root. I'm running 70s2 tig wire at 90 amps. Is the glass normal? I'm taking a 2" 6 g test sometime next week and was wondering if it is should I get it all out before I run my hot pass or just burn it all out. Thanks
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    Thu Jan 06, 2011 11:40 pm
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You "can" usually burn it out on the next pass, but for a test I'd sure prefer to hit it with a wire wheel in a grinder.

Steve S
Poland308
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Like Otto said wire wheel it for a test but burn over it on an average day.
I have more questions than answers

Josh
Coldman
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If you're getting excessive silicon residue, if could be the quality of the parent metal. In this case I would wire wheel every pass because even on an average day you don't want inclusions in your welds.
Flat out like a lizard drinkin'
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