Using miller dynasty 280 basic pro settings of 70% ac balance and 120 hz on ac frequency.
Machine was set to 140 using the foot pedal.
WELD PROCESS = TIG, GTAW, GAS TUNGSTEN ARC WELDING
METAL TYPE = ALUMINUM 6061
THICKNESS = 1/8”
WELD TYPE = COPED TUBE JOINT
JOINT TYPE = COPED TUBE PARTIAL PEN
POSITION = FLAT
AMPERAGE = 140 AMPS CONTROLLED WITH FOOT PEDAL
TUNGSTEN = 2% LANTHANATED, 3/32"
FILLER WIRE = 3/32” 4043
POLARITY = AC
GAS FLOW = 20 CFH
CUP SIZE = 8
ADDITIONAL SETTINGS = AC BALANCE 30% CLEANING, AC FREQ 120HZ
PRE FLOW = 1 SEC
POST FLOW = 10 SEC
TIPS: KEEP A FAIRLY TIGHT ARC AND KEEP TORCH ANGLE TO A MINIMUM
Aim for an arc length that is equal or less than the diameter of your tungsten electrode.
Torch angle can be forgiving provided your arc length is tight.