I made a test today. Tungsten electrodes
it was kind of more powerful than copper electrodes.I did big holes with the same flux times on 4s so i tested 3s. It welds 0.1 copper on 3s.
i did a thorough test on 3s
the whole thing
As seen at the pics it welds 0.1 copper on 3s but it gets stuck, so when i remove the electrodes due to the mechanical properties of the copper it breaks apart.
did 0.2 on 4s and pretty much the same results. actually i do not want to push the machine on 0.2 because it would blow the fets. So no further testing on that.
Even if it is more powerful i couldn't get a single decent weld without breaking the strip. Maybe if i sharpen more the electrodes i can get a better result.
verdict: Tungsten electrodes proved to be more powerful yet more difficult to deal with (yes even more)
So far not worth it. Mission failed.