When would DCRP (electrode positive) be recommended for aluminum? Is the limitation the melting of the electrode?
I was experimenting with DCEP on aluminum using a pure tungsten electrode and watched it ball right up into the cup. I grabbed another electrode, lowered the amps and tried again. It was fascinating to watch the glowing ball above the mirror like molten aluminum, and the puddle solidified into a very pure looking bead (overly wide though). I have a feeling that a darker lens shade is required for this as it was god awful bright.
Just wondering if there is any place for this process, or if thick or thin, I'm better off using AC on aluminum. I'd like to weld 1/16" aluminum of the diamond tread variety. My options are AC (60 hz plus HF) or DCEP.
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