Using the laywire technique along with 3/32' filler on thinwall square tubing helps with melting thru too much and pulling those oxides into the bead.
Clean metal, sharp tungsten, and good gas shielding are 3 keys
WELD PROCESS = TIG, GTAW, GAS TUNGSTEN ARC WELDING
METAL TYPE = CARBON STEEL SQUARE TUBING
THICKNESS = .063” WALL THICKNESS TUBE
WELD TYPE = GROOVE WELD
JOINT TYPE = BUTT JOINT
POSITION = FLAT
AMPERAGE = MACHINE SET TO 70 AMPS CONTROLLED WITH PEDAL 60-65 AMPS SWEET SPOT
TUNGSTEN = 2% LANTHANATED, 3/32"
FILLER WIRE = 3/32” ER70S2
POLARITY = DCEN
GAS FLOW = 20 CFH argon
CUP SIZE = 8
ADDITIONAL SETTINGS = PRE FLOW = .5 SECPOST FLOW = 7 SEC
TIPS: KEEP A TIGHT ARC ..
practice restarts until they blend in
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
Being able to restart a TIG bead in a way that hides the restart is a great skill to work on.
One simple technique is to think of the crater where you stopped as a target with a bullseye.
Simple center up on the bullseye and increase amperage to match the crater and then proceed with the bead.
Try out a Jazzy 10 ceramic today...visit Weldmonger.com
WELD PROCESS = TIG, GTAW, GAS TUNGSTEN ARC WELDING
METAL TYPE = CARBON STEEL
THICKNESS = 11GA
WELD TYPE = Fillet weld
JOINT TYPE = LAP JOINT
POSITION = 2f HORIZONTAL
AMPERAGE = MACHINE SET TO 100-125 AMPS CONTROLLED WITH PEDAL 115 AMPS SWEET SPOT
TUNGSTEN = 2% LANTHANATED, 3/32"
FILLER WIRE = 1/16” ER706
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 ..practice restarts until they blend in
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