Tig conversion kit?

[80proZ]

But can't you weld aluminum with DC+ ? I thought I had heard that, but I've never tried to tig aluminum with anything besides ac and I haven't done that in about 4 years, so I can't confirm it.

Then again, if memory serves, high frequency is what starts the arc prior to touching the material if you're not using a foot pedal and I don't know how you could scratch start aluminum? It's too susceptible to contamination. The tungsten burns at a much higher temperature than aluminum and contaminates the weld from the word "go."

Mathius

You can weld AL on DC+ but it runs really hot.You can also scratch start it but you wont like it.The HF does more than just start your arc.
IF its a AC only machine you will not be able to TIG steel or SS.