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TIGGING mild steel, 3F, t-joint...a few questions

Posted: Mon Dec 06, 2010 10:49 pm
by BooRadley
So I'm going to take a test in a couple of days, tigging 1/8" thick mild steel, t joint, vertical. I have been using 3/32 tungsten and same size filler for 2F(horizontal tee), @ 93A, DCEN, with foot pedal. I have been walking the cup with 2F position tee joint. My questions are:

Should I use different amp setting, different size filler rod, or different size tungsten when tigging a tee in 3F position? Also should I freehand in this position, or try walking the cup? (I have walked the cup before in this position, but it has been about a year since then, and I can't remember much about the required technique anymore).

I will be able to practice for a cumulative 8 hours before taking the test, starting tomorrow evening.

Thanks for your input.

Re: TIGGING mild steel, 3F, t-joint...a few questions

Posted: Thu Dec 09, 2010 1:37 am
by BooRadley
Test is in the morning. I can retake it a couple of times if I fail, but if someene can answer any of my questions, it would be helpful. I really don't want to fail. :(

Re: TIGGING mild steel, 3F, t-joint...a few questions

Posted: Thu Dec 09, 2010 10:02 am
by jpence38
How have you been doing with your practicing until now? What problems are you experiencing? All your welding parameters seem to be ok. I would run just a little more on the amps, but it sounds good. As for freehand or walking the cup, that is up to you and what you feel comfortable with.

Re: TIGGING mild steel, 3F, t-joint...a few questions

Posted: Thu Dec 09, 2010 2:18 pm
by kermdawg
What Jpence said. All depends what your comfortable with. I only walk the cup when I weld pipe, and even then I freehand the cover pass. Everything else I freehand, but thats just the way I was taught.