TIG WELDING ON DISSIMILAR OR UNKOWN STEEL - SNAP ON WRENCH TO 4140
WELD PROCESS = TIG, GTAW, GAS TUNGSTEN ARC WELDING,
METAL TYPE = CHROMIUM VANADIUM STEEL TO 4140
THICKNESS = 1/4"
WELD TYPE = FILLET WELD
JOINT TYPE = BUTT
POSITION = FLAT
AMPERAGE = MACHINE SET TO 140 AMPS CONTROLLED WITH FOOT PEDAL
TUNGSTEN = 2% LANTHANATED, 3/32"
FILLER WIRE = .063” HASTELLOY W (AMS5786)
POLARITY = DCEN
GAS FLOW = 20-25 CFH argon
CUP SIZE = 12
ADDITIONAL SETTINGS =
PRE FLOW = .2 SEC
POST FLOW = 11 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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