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Originally Posted by Opper77
...Any MIG welder capable running alum. will either have an extra external box or internal circuit that is basically just a transformer (regular MIG is AC rectified to DC) that enables breakdown of the oxide layer....
Mac.
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A lil more on this box? I was day-dreaming before about Millers spoolmate #3035. For my welder (millermatic 175), it does indeed need an extra box. I thought the box was just for gas control as my welder does not have an extra gas connection. I did not think the box added high frequency. I thought high frequency was used just for starting/maintaining the arc in tig.
Edit: Oh, I liked your "making art" comment. One day maybe I too can make art.
