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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