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TIG WELDING 12L14 TO HSS settings

12L14 steel is not really recommend for welding but if you do any work for machine shops you might need to weld some light duty applications like pressed in bosses 

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METAL TYPE = CARBON STEEL 12L14 free machining steel

THICKNESS = 1" plate to machined fitting

WELD TYPE = Fillet weld

JOINT TYPE = TEE JOINT

POSITION = 2F  

AMPERAGE = 140 AMPS CONTROLLED WITH FOOT PEDAL  

TUNGSTEN = 2% LANTHANATED, 3/32"

FILLER WIRE = 1/16” ER70S6

POLARITY = DCEN

GAS FLOW = 20 CFH argon

CUP SIZE =  8

ADDITIONAL SETTINGS =   

PRE FLOW = .5 SEC

POST FLOW = 7 SEC

TIPS: KEEP A TIGHT ARC 

12L14 free machining carbon steel is not recommended for welding but for certain low stress applications it can be welded satisfactorily.

12L14 has a tendency to undercut easily even when tig welding.

to avoid undercut, let the puddle flow out to the toes of the weld and try not to play the arc directly on toes of weld

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.Keep the hot tip of the filler wire shielded by the argon envelope from the tig cup 

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