Went and stole the adapter from the batch plant. 220v, 200a and still not engough ass to get a puddle started on the surface, but at least it does not burn off the electrode as much.
Found some 1/8th and 60a is still a little hot. now I can form and manage a puddle, and do a little filler rod.
Aluminum needs to have the oxide layer removed before welding. Oxide forms on the surface pretty quickly, so it needs to be removed right before welding. The oxide melting temperature is much higher than the aluminum, which is probably why you can’t get a puddle going.
I use Scotch Brite to remove the oxide from the welding area.
AC balance is very important for not burning up your tungsten. You need to make sure you know what the balance setting on your machine means. Some machines show the number for the positive and others show the number for negative. I’ve found that 70% EN works well for me with a 2% Lanthanted tungsten.
BTW: I use 2% Lanthanted for everything. It works well for everything I weld and eliminates keeping track of what tungsten I have in the torch.
New process for me, I assumed that even with thick and minimal amps you could get a low penetration weld or puddle going - even if it’s a tall bead on the surface.
Thick stuff on the plasma table and now Aluminum TIG…Whole different animal(s).
I know to you experienced peoples those welds are garbage, give me time. I’ve got a whopping 2 hours experience. Should be welding popcans and foil by lunch today if I can get some argon.
If not, I’ll have to start a POS thread about this welder and demand a refund because it won’t make welds like this
Don’t make me block you @Sticks
If you want to master this, you will need a good AC/DC welder with over 200 amps. 1/4-inch alum will require all 200 amps, or you will have to get an Argon / Helium gas blend. Preheating will work, but it is a royal pain in the ass.
