Do not know ???
by Brian Tobin
(Weatherly,PA USA)
I am a new at Tig Welding aluminum, need advice on setting welder up a miller using 30 argon 50 helium. Not sure where all the knobs are to be set when trying to weld? Are there any book that might help??
THANK YOU...
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if its an old school transformer machine, here are the basics
alternating current
high frequency set on continuous
contactor set to remote
amperage switch set to remote
set main amperage to a little more than one amp per thousandths of thickness being welded.
if the machine has ac balance, set it to 7
set helium and argon flowmeters to 10 cfh with a #7 cup
use 2% lanthanated, thoriated, or ceriated electrode big enough to handle the amperage
1/16 is ok up to around 85 amps
after that 3/32 up to around 200
over 200 needs a 1/8"
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