TIG WELDING 6063 ALUMINUM .070"AT 50HZ
Higher AC frequency settings of 100-200hz are great for specific applications like punching into the root of a thin aluminum fillet weld....or for limiting bead width on an outside corner of .050" aluminum.
But higher AC frequencies require a higher amperage setting just like high pulse settings require a higher amperage setting
If you are limited to a 200 amp welder, setting the AC frequency to 50 hz will help you get penetration.
WELD PROCESS = TIG, GTAW, GAS TUNGSTEN ARC WELDING
METAL TYPE = ALUMINUM 6063
THICKNESS = .070"
WELD TYPE = BEAD ON PLATE
JOINT TYPE = BEAD ON PLATE FOR PENETRATION WITH 50HZ
POSITION = FLAT using a TURNTABLE
AMPERAGE = 90 AMPS
TUNGSTEN = 2% LANTHANATED, 3/32"
FILLER WIRE = 3/32” 4943
POLARITY = AC
GAS FLOW = 18 CFH argon
CUP SIZE = 6
ADDITIONAL SETTINGS = AC BALANCE 35% CLEANING, AC FREQ 50HZ
PRE FLOW = 1 SEC
POST FLOW = 10 SEC
TIPS: KEEP A FAIRLY TIGHT ARC AND WATCH TORCH ANGLE
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.
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