I'm only a hobby welder so I know nothing compared to you guys but something I have found with Super 6 6013s (mainly 2.4mm) is that they run much nicer and more consistently with pulse. For 2.4mm I set my R-Tech tig ac welder to a base of 60 amps and peak of 115 amps and pulse width in the 12...
I watched a YouTube of a guy doing a similar job and he drilled small holes at both ends of the crack before welding.
Apparently it helps stop the crack reappearing.
Had my R-Tech 161 ac/dc for a couple of weeks now. I am only a hobby welder but so far very impressed.
I went on a 2 week TIG course last year where I used high end machines but to me my R-Tech seems just as good.
I also got the little 30amp plasma cutter. Have clean cut 6mm mild steel with...