Push Pull? What is it?

[bill71762]

What exactly is a push pull gun? How does it work and how is it better or different than a standard gun?

[bill71762]

I've changed argon bottles and I've also tried 3 different torches,
I've also changed my regulators it has really had me scratching my head, but thhanks for the help
Bill

[bill71762]

Hawk, I appreciate the good suggestions and I will definately try the 1100 filler rod and make absolutly sure my base metal is clean, I have been using zirconated tungsten, I've tried them all zirconated. ceriated and pure and I've found the z to be the best also, I'll give it another shot in a couple...

[bill71762]

alum. tig problems

I guess I should say that diamond plate is 3003, and one of the things that I've noticed is that immediately upon striking an arc the area around where I strike the arc turns a black smutty color and there is discoloration of the tungsten, and sometimes a change in...

[bill71762]

tigging alum

The type of machine that I'm using is a miller syncrowave 350, and the material is 1/4" alum, diamond plate and the filler rod is 4043.

[bill71762]

I've recently run into problems welding alum. Previously I've been able to run beautiful beads but recently it's been nearly impossible, the surface of the welds look rough and dirty and I can't figure out why, I've cleaned the material I've adjusted my gas flow there are no drafts in the shop, I've...