I been using a Dimetrics Centaur 75 power supply and sequence controller
for circumferential automatic precision tig welding for almost 15 years.
It uses a high frequency arc starter which has worked fine on most of
our welds which are done with a .020" arc gap.
I'm ordering another welding system and the salesman is trying to sell
me one which will use a Miller Maxstar 152 that uses the Lift-arc start.
Since the system will include a Arc Voltage controller with torch servo
connected to a Amet XM controller I assume this will work fine.
any one had experience with this type of system. Most of our welding
our done at an average of 30 amps, 39"/minute. I'm concerned the Maxstar
152 will not perform as well as the Centaur especially on some of the
finer welds which average 5 amps.
18 years ago