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Dcep aluminium. Welding ???
Posted: Sun Nov 10, 2013 1:39 pm
by Steve49suzuki
Hello. Jody mentioned in one video dcep welding aluminium on thin sheet. Now has anyone ever done this and what potential uses does it have. Would it be any good for small petrol tanks or water tanks.
Steve
Re: Dcep aluminium. Welding ???
Posted: Sun Nov 10, 2013 3:05 pm
by weldin mike 27
Hey,
Ive only talked about this once, it involves using a very thick tungsten to soak(?) up the heat. The one i saw must have been nearly 5mm/ 3/16.
Mick
Re: Dcep aluminium. Welding ???
Posted: Sun Nov 10, 2013 4:42 pm
by MinnesotaDave
I have done it and it works fine on very thin aluminum.
Tungsten is the issue.
3/32" carries about 30 amps
1/8" about 40 amps.
I'm sure each would carry more for short bursts of welding.
Re: Dcep aluminium. Welding ???
Posted: Sun Nov 10, 2013 6:02 pm
by ajlskater1
Dcep is really only good for very thin material, like .030 and thinner. Not a good choice for welding fuel tanks. Dcep balls tge tungsten a lot so you need a much larger tunsten to be able to handle that.
Re: Dcep aluminium. Welding ???
Posted: Sun Nov 10, 2013 6:06 pm
by ajlskater1
Good to see a fellow minnesota guy on here dave.
Re: Dcep aluminium. Welding ???
Posted: Sun Nov 10, 2013 7:13 pm
by Steve49suzuki
Thanks for replys. I've got some 1050 sheet 1.5 mm thick sounds like its no good for that job then. Might have a go just to see but won't be making any tanks out of it.
Cheers Steve
Re: Dcep aluminium. Welding ???
Posted: Sun Nov 10, 2013 11:28 pm
by MinnesotaDave
ajlskater1 wrote:Good to see a fellow minnesota guy on here dave.
Hey - what part o the state you in? (Your location is not listed)
Re: Dcep aluminium. Welding ???
Posted: Sun Nov 10, 2013 11:35 pm
by MinnesotaDave
Steve49suzuki wrote:Thanks for replys. I've got some 1050 sheet 1.5 mm thick sounds like its no good for that job then. Might have a go just to see but won't be making any tanks out of it.
Cheers Steve
You will find it welds fine on thin stuff, but we pushed too far on amps for too long and the tungsten blew the end off! LOL
Excellent experiment though
We did it with a thermal arc 95 arc/lift tig.
Re: Dcep aluminium. Welding ???
Posted: Mon Nov 11, 2013 12:55 am
by ajlskater1
I live in st. Boni kinda the far west metro. How about you?
Re: Dcep aluminium. Welding ???
Posted: Mon Nov 11, 2013 1:02 am
by ajlskater1
I actually did the samething but on ac with a old syncrowave. I was welding sone .040 aluminum had 1/16 tungsten in and someone brought me sone 1/8 to weld so instead of changing ecerything out I tried to weld it and balled alnost all the way up inside the cup and then fell into the puddle. Oops!!!
Re: Dcep aluminium. Welding ???
Posted: Mon Nov 11, 2013 8:10 am
by MinnesotaDave
ajlskater1 wrote:I actually did the samething but on ac with a old syncrowave. I was welding sone .040 aluminum had 1/16 tungsten in and someone brought me sone 1/8 to weld so instead of changing ecerything out I tried to weld it and balled alnost all the way up inside the cup and then fell into the puddle. Oops!!!
I'm in Bemidji, about 4 hours north of you.
A few weeks ago I tried 3/32" thoriated at 230 amps AC on some warm up scrap aluminum. It was already on the torch with a gas lens.
The tungsten literally started spraying into the puddle.
1/8" thoriated was fine though (standard #8 cup). Suppose following the charts could be a good thing...
![Laughing :lol:](./images/smilies/icon_lol.gif)
Re: Dcep aluminium. Welding ???
Posted: Mon Nov 11, 2013 11:35 am
by ajlskater1
Was that 230 on a transformer machine? Cause I use 3/32 up yo almost 300 amps on the dynasty 350s at work.
Re: Dcep aluminium. Welding ???
Posted: Mon Nov 11, 2013 2:19 pm
by MinnesotaDave
Yep, my 1967 Airco is actually a Miller 330 a/bp. 50/50 balanced transformer. Works really good though.
Your new technology must make quite a big difference - yeah, I'm jealous
![Very Happy :D](./images/smilies/icon_e_biggrin.gif)
Re: Dcep aluminium. Welding ???
Posted: Tue Nov 12, 2013 5:38 am
by ajlskater1
Those old trabsformer nachines are awesome, that's what I statted out on. The new machines are nice but to be honest I think using a old transformer makes you a better welder.