I want to weld some thin Inconel tube and sheet, about 0.02" (0.5mm) thick. I'd also like to be able to do welds in very confined spaces.
Not having the zillion dollars for a commercial micro-tig or micro-mig setup, I thought I'd build my own. I have good electronics skills, but I know very little about welding - done a bit of stick, and some brazing, that's all.
What values of voltage, current and wire should be used for something this size? I'd like the setup to be useable for welding up to 0.05" thick sheet/tube, and down to 0.01" or so (1.2mm - 0.25mm).
Mig or tig? Both?
Constant current and constant voltage are both quite easy to do in something of this low power, HF is quite easy too, and fancy polarity reversing setups aren't hard either. What's worth having?
Also, can I use Monel wire as filler on Inconel, as it's easier to obtain then Inconel wire?