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Econo-Box 01-16-2007 12:10 PM

Aluminum Welding
 
So someone tell me if Im retarded. I know you can weld aluminum with a TIG or MIG welder but I don't know the first thing about welding in general. I have a flux at my disposal that I am gonna start ------- so I can learn how to get a bead going and ---- but I was wondering about Alum, is it harder to weld? What is the easist way and what is the BEST way to weld it.

I was talking with a friend about it and he said it might be easier than steel to learn with. I dont know a lot about it but I thought the temps were different and Alum needed to be hotter. someone skool me.

idiot-stick 01-16-2007 01:47 PM

Re: Aluminum Welding
 

Originally Posted by 97EconoBox
What is the easist way and what is the BEST way to weld it.

easiest = tig
best = tig

BigWheeze 01-16-2007 01:56 PM

Re: Aluminum Welding
 
You can TIG, MIG, and Stick weld aluminium. Stick makes a ------- mess. MIG is fairly messy trying to set your machine is a hasel for someone that doesnt weld aluminium alot. TIG is the 'fastest', easiest, and best way for a newbie.

rudebwoy 01-16-2007 02:41 PM

Re: Aluminum Welding
 
and you can't weld aluminum with a flux

BigWheeze 01-16-2007 03:17 PM

Re: Aluminum Welding
 

Originally Posted by rudebwoy
and you can't weld aluminum with a flux

Eh you're wrong, Look up Aluminium SMAW Electrodes. They use flux.... Shielded Metal Arc Welding which means its self sheilded.... I'm the 'omgmasterwelder'

gon3r 01-16-2007 09:11 PM

Re: Aluminum Welding
 

Originally Posted by BigWheeze
Eh you're wrong, Look up Aluminium SMAW Electrodes. They use flux.... Shielded Metal Arc Welding which means its self sheilded.... I'm the 'omgmasterwelder'

i think rude meant with a flux core wire feed welder? smaw is stick electrodes, not wire feed? am i wrong, or does smaw apply to flux core wire?

BigWheeze 01-16-2007 10:58 PM

Re: Aluminum Welding
 

Originally Posted by weiRtech
i think rude meant with a flux core wire feed welder? smaw is stick electrodes, not wire feed? am i wrong, or does smaw apply to flux core wire?

"you can't weld aluminum with a flux." He never said SMAW, GMAW, FCAW-S, FCAW-G. :-*

Econo-Box 01-17-2007 10:36 AM

Re: Aluminum Welding
 
I was only going to use the flux to get used to makin a nice bead and the basics. All though I think I am going to end up flux'ing the rest of the downpipe. I dont plan to be the next master fabricator but it would be sweet to try making my own mani's and strut braces. Cool ---- to play with in the new garage you know.

rudebwoy 01-17-2007 01:23 PM

Re: Aluminum Welding
 
I meant flux core welder. I have mig 125a and the only thing I can weld with it is steel. can't weld aluminum with it

BigWheeze 01-17-2007 03:10 PM

Re: Aluminum Welding
 

Originally Posted by rudebwoy
I meant flux core welder. I have mig 125a and the only thing I can weld with it is steel. can't weld aluminum with it

You can weld aluminium if it has a gas setup and teflon liner in the whip. Push Pull set ups work a lot better.

rudebwoy 01-17-2007 03:30 PM

Re: Aluminum Welding
 

Originally Posted by BigWheeze
You can weld aluminium if it has a gas setup and teflon liner in the whip. Push Pull set ups work a lot better.

thats the point a easy mig welder does not have gas nor teflon its just a flux wire mig welder. weld mild steel how would you put gas in a easy mig 125a? I would love to know how. I dont know a lot about welders but I know I am correct when I say you can't weld aluminum with a easy mig

sikcrx89 01-17-2007 09:05 PM

Re: Aluminum Welding
 
correct me if im wrong but you could possibly weld aluminum with a flux mig you have to reverse the polarity and use copper wire... ive never done it but i have had some people say they have.

ju-on 01-17-2007 09:10 PM

Re: Aluminum Welding
 
We had a wire feed welder setup for Aluminum at my old work. I tried using it once. The ---- would feed so fast, I couldn't adjust it, and it burnt right through the metal in a split second. I gave up.

gen4acclude 01-17-2007 09:12 PM

Re: Aluminum Welding
 

Originally Posted by ju-on
We had a wire feed welder setup for Aluminum at my old work. I tried using it once. The ---- would feed so fast, I couldn't adjust it, and it burnt right through the metal in a split second. I gave up.

turn the amparage and feed down

Smith-02 01-17-2007 09:18 PM

Re: Aluminum Welding
 

Originally Posted by gen4acclude
turn the amparage and feed down


roflcopter, captain obvious!

BigWheeze 01-17-2007 09:36 PM

Re: Aluminum Welding
 

Originally Posted by sikcrx89
correct me if im wrong but you could possibly weld aluminum with a flux mig you have to reverse the polarity and use copper wire... ive never done it but i have had some people say they have.

HUH? You run DCEP with gas. Copper wire? Thats an incompatible filler metal for aluminium. Old trick was balling the tungsten with copper for a more stable arc.


I could make you a nozzle that slips over the end of the gun that has a tube on it for argon. Teflon liners are cheap.

sikcrx89 01-17-2007 10:43 PM

Re: Aluminum Welding
 

Originally Posted by BigWheeze
HUH? You run DCEP with gas. Copper wire? Thats an incompatible filler metal for aluminium. Old trick was balling the tungsten with copper for a more stable arc.


I could make you a nozzle that slips over the end of the gun that has a tube on it for argon. Teflon liners are cheap.

im pretty sure the method i was talking about didnt require gas but i could be wrong. as far as it as explained to me you would just reverse the polarity on you fluxcore mig use copper mig wire and adjust your feed as necessary,not sure about how thick of aluminum you could do this with but i hear it works..

ju-on 01-18-2007 07:00 PM

Re: Aluminum Welding
 

Originally Posted by gen4acclude
turn the amparage and feed down

Couldn't or I would have. I could adjust the side of the welder that was for carbon steel, but the aluminum setup was off some other port on the welder. I would have loved to turn it all down, but couldn't find anyway to adjust it. So I just said ---- it.

gon3r 01-18-2007 09:20 PM

Re: Aluminum Welding
 
how the hell can you weld 2 peices of aluminum together with copper? and no shielding gas? you've got to be kidding... give your head a shake, you might hear some rocks rolling around up there. :S

i've used the old copper trick with mig welding steel by clamping a plate of copper to the edge of some steel to prevent the filler material from going over the sharp edge i wanted to keep.

BigWheeze 01-18-2007 09:23 PM

Re: Aluminum Welding
 

Originally Posted by weiRtech
how the hell can you weld 2 peices of aluminum together with copper? and no shielding gas? you've got to be kidding... give your head a shake, you might hear some rocks rolling around up there. :S

i've used the old copper trick with mig welding steel by clamping a plate of copper to the edge of some steel to prevent the filler material from going over the sharp edge i wanted to keep.

Yup we use copper 'spoons' and flat bar for backing fairly often

sikcrx89 01-19-2007 05:57 AM

Re: Aluminum Welding
 

Originally Posted by weiRtech
how the hell can you weld 2 peices of aluminum together with copper? and no shielding gas? you've got to be kidding... give your head a shake, you might hear some rocks rolling around up there. :S

i've used the old copper trick with mig welding steel by clamping a plate of copper to the edge of some steel to prevent the filler material from going over the sharp edge i wanted to keep.

like i said im not a welder!!! i have been told by couple people that its possible not that it is/has been done i havent tried anything like this which if you would have read my previous post you would know that i was mearly telling what i have heard and trying to learn if it was possible or not. so if this isnt possible what would the copper mig spools for that are for flux migs? steel,mild steel,or what?

The Nutty Professor 03-18-2008 11:41 PM

Re: Aluminum Welding
 
I know this is a year old thread but I hate opening new threads when there's something out there already. I looked at this wire:

http://cgi.ebay.com/ws/eBayISAPI.dll...MEWA:IT&ih=012

And the seller told me it was a gas-less aluminum wire. Meaning flux to me. I have a cheapy Harbor Freight welder which works fine for what I need on steel but now for my race bike I need to weld some aluminum pieces. So yes or no?


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