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Up vs down
Posted: Thu Jun 05, 2014 4:50 am
by Drifta-X
Doing a Tafe tig test atm, doing a 3G on 1/4" mild steel
Wondering if there is a differance between running up or Down.
I know there is with other welding methods, but just now wondering g if this also applys to tig.
Rob
Re: Up vs down
Posted: Thu Jun 05, 2014 5:32 am
by coldman
Especially for your test you should only go uphill. Downhill is not really recommended for tig although it can be done. Jody does it by feeding the wire behind the arc but I wouldn't do it to impress your teachers during a test.
Re: Up vs down
Posted: Thu Jun 05, 2014 5:36 am
by Drifta-X
It's only a visual test, and the teachers couldn't tig their way out if a wet paper bag.
A pass isnt up to my stds but a pass is a pass, and I can prac more when I get my own tig.
Re: Up vs down
Posted: Thu Jun 05, 2014 6:13 am
by coldman
Ok got it. Good luck.
Re: Up vs down
Posted: Thu Jun 05, 2014 5:18 pm
by Drifta-X
Oh btw it's a 2 pass.
Having prob with the 2nd pass
Been told weld is too concave
Using 1.6mm rod
Found twisting 2 rods together makes it easier as they only have that one size filler.
Using 140 amp
Number 6 cup
No gas lense
Re: Up vs down
Posted: Fri Jun 06, 2014 12:14 am
by nightscale
140 amps and 1.6mm filler sounds wrong to me should be at least 2.4mm plus for those amps
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Re: Up vs down
Posted: Fri Jun 06, 2014 4:31 am
by Drifta-X
Well turns out they got some 2.4mm in.
Did a weld.
Wow it looks how it should.
I'm still learing and trying differant things all the time.