Stick welding aluminum

[Birchum]

Thanks, Hawk!
I'm just trying to figure out wheter or no I can get by with a DC only TIG machine.

[Birchum]

Thanks for the replies.
I have TIG welded aluminim AC with very nice results.

Why is it important to use 100% Helium when DC welding Aluminum as opposed to say...THE25?
Also, what do you mead by patience? Is it slow to puddle?
Explain.

[Birchum]

Can someone please tell me how,if possible,to stick weld aluminum?
I need to know how to set up and what materials to use.
I'm not even sure this can be done but I've heard of it somewhere,I think.

Also,I need the same info on DC welding aluminum.

The material...

[Birchum]

I'm thinking of purchasing a Bobcat 225.
I'll be stick welding and TIG welding steel and aluminum(up to 1/2")
Is this a suitable rig for welding this size aluminum?
What is the apporximate cost of this rig?
I was quoted just under $3400 for the Trailblazer and was hoping...

[Birchum]

Thanks....I'll give the Zirconiated tungsten a try.

[Birchum]

Thanks for the replies.
I am usually running at 150a or less. AC bal at 50%( most of the time)
My gas is set at 20cfh.
I've never used any other than pure or Thoriated.
**What kind of pros/cons are associated with the lanthanated and ceriated tungsten?**

[Birchum]

I am having a problem with my tungsten. (2% thoriated)
It keeps developing several small burrs when welding.
they look like this:

\!!!!!!/

On the end of the tungsten.I am welding cast aluminum that is pretty thick so pure tungsten wont work. (Boils off)...