which is the right machine for aluminum welding,,,tig? , mig? or what?

What are you welding? What is a decent price to you?

I prefer TIG for Aluminum. I have used mig with spool gun for thicker stuff at work. I have a lincoln 140 mig at the house and I was surprised that i feed alum wire without bird nesting. I could get a spool gun for it if i wanted to. Due to it being a small machine I was limited on the thickness. Miller has some entry level tig machines for around 1K

http://www.millerwelds.com/products/tig/product.ph...

You can also find used syncrowaves and idealarcs for the same price.

Eastwood has an AC/DC TIG unit on sale for 699.00 It's made in China but Eastwood oversees the manufacturing. I have a friend who has a 220v Eastwood mig. Loves it. It came with the spool gun He got it for around 500 or 600.

http://www.eastwood.com/welders/tig-welders.html

If you want to go the mig route I would highly recomend a 220 machine. The Millermatic 211 is getting great reviews. You can use in on a 110 or 220 outlet.

The 220 Machines that Miller/Hobart and lincoln sell are spool gun ready. Once again you can find deals on used ones.

Then there is the Chinese route. I have heard some great things about them. I have also heard customer service sucks. I haven't personally used any. I would look at a miller or lincoln first. But if it works and the price is right, i may give them a shot.

they do have a combo stick/tig/plasma cutter for around 1K.

http://www.everlastgenerators.com/products-categor...

http://ramsond.com/weldprod.php

If you want more info on welding check out the link below

http://weldingweb.com/

It all depends on what you are doing. For light duty stuff 1/8 to 1/4 inch a spool gun will be the cheapest option. For intricate work tig. For production a push pull unit with a pulse arc but these are big $.

i think, welding,,, tig is right machine for aluminum, thank you.

There's some information on welding at http://www.weldingfun.com/ .. should have the answer your looking for. Sorry for being to lazy to look it up