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  #1  
Old 11-08-2003, 10:17 AM
Cheryl Cheryl is offline
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Join Date: Sep 2003
Location: Florida
Posts: 95
I am curious about welding aluminum

Guys,

I don't want to hear about how hard it is, and I don't want to hear about a great welding book I should buy. I want to know if it is possible for me to do it, and how much I would need to get started. I have some experience welding with a MIG welder.

From the search that I did here, I found that a TIG welder is better for aluminum, but a MIG welder can be used as well. Not wanting to spend the big bucks on a TIG welder, can someone tell me what size MIG I can use to weld what size aluminum plate?
  #2  
Old 11-08-2003, 03:12 PM
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vipermanz vipermanz is offline
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Join Date: Mar 2001
Location: Birmingham Alabama
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Aluminum is a difficult material to weld with, but with a lot of practice you can have it mastered with a 115v machine, you will have to use a machine with a shielding gas system and possibly have to change the drive rollers and wire liner heading towards the gun, As far a Tig goes, Yes it is somewhat easier but only because you can drop the amperage super low, another factor is also you may not need a filler metal with Tig.


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  #3  
Old 11-08-2003, 08:15 PM
Cheryl Cheryl is offline
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Join Date: Sep 2003
Location: Florida
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Why do the driver rollers need to be changed, and to what? What do I ask for at the store? Also, the same for the wire liner. Why am I changing it and to what? Again, what do I ask for at the store?

Should I choose a machine that will allow these changes, or can I make these changes to any machine. What amperage machine should I buy?
  #4  
Old 11-08-2003, 08:41 PM
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J.Gordon J.Gordon is offline
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Join Date: Apr 2003
Location: Missouri
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I havenít heard any thing about the drive rollers but for the liner just get a nylon liner for your Mig. If you donít have one as of yet and you want a 115-volt model buy a good one! Preferably from a welding supply that will take care of you down the rode. The one I use has copper wound coils. A welding engineer works at the shop I use. And has been able to answer all my questions. The liners for my Mig are about $15-$20 you will probably have to use argon as your shield gas. A decent welder would start at around $400.00 and the bottle from $70-$270.00 not counting the wire. I did see a guy welding aluminum with a propane torch at a farm show but I didnít get the name of the rod he was using. And it was cheap!
I hope this helped.
Jeff
  #5  
Old 11-09-2003, 02:55 AM
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vipermanz vipermanz is offline
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sometimes a different sized roller is needed, on most all brands today that shouldn't be required, i would recommend getting a teflon liner to help with the aluminum wire, it's such a soft wire it needs as little resistance as possible, otherwise it can "birdnest", that's when it sticks to the tip and gets wrapped around the rollers quite well , forming a birdsnest resembling clog of wire,

Zip, i think he was probably brazing that aluminum, there is a rod called Alumaloy http://www.alumaloy.net/ That is a low temp brazing type rod
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