ok correction, the mild steel stick rods i have are 1.5mm
here's how tdays test went
hacksawed afew sections from me 60mm dia 2mm thick mild steel pipe in garage
first tested penetration at welder setting for 1.7mm
then at 1.5mm setting, good even penetration
tacked two pieces
lay down first 2cm run, goes real good, or beginners luck?
continued laying short beads to get this and then at the last moment it burns through.
i found if i move along too slow or weld longer than 2cm, heat & metal will build up on the other side and gravity pulls the heavier blob through.
too fast and it looks splotched with no penetration.
if there's a gap between the two pipes the molton blob is likely to drop through
if the gap between the pipe is perfect n tight, its more likely to achieve a good weld shown above.
prolonged heat is making it burn through and need a more consistant heat management technique.
so i tacked the next piece and continued tacking it in 1/2sec pulses to keep heat low (push in to weld a blob, release to cool and move to next spot, repeat)
much more consistant and not too much penetrating blob on the other side
continued tacking till all the gaps r filled
grinded flat
painted and it looks seamless. tested join by wacking with hammer and its solid(Y)
found my ideal technique
, i takes so much time...
