Am in the market for an AC/DC TIG welder for welding aluminum. . .
opinions on Square / Pulsed wave machines? does it really make that big of a difference compared to plain old AC?
i've seen a few inverter-type machines where one can control the complete (almost) profile of the wave.. frequency, dutycycle, square, triangle, etc
are these significantly better? or will a basic AC machine do the same job?
thanks
-tony