First TIG welds Critique

[GoK4rtFanatic]

Hi, today was my second day of tig welding, here are my best runs of the day, any feedback is appreciated. The burn in the center was a previous chink in the metal that the puddle enlarged by the way. Any tips?

[Weld_]

You're getting a lot of porosity either the metal is not clean, the metal has contamination, or you don't have enough gas coverage. Solve this problem 1st before anything else.

[albrightree]

Torch distance, torch angle, gas flow would be the first things to look at. They're covered pretty well in the manual, but you can always call tech support for assistance. Its part of what you payed for.

Page 36 from the manual :




Page 21 from the Tig200d manual :




Best of Luck

PS : Letting the pedal up slower at the end of the weld will reduce the amount of cratering, unless your breaking the arc by lifting the torch up quickly.

[BluCllrPlt]

All the welds look overheated, likely from too slow travel speed. Try to get a puddle started quickly and then get moving. You may want to just try making a puddle and moving the puddle along without adding filler. Get as comfortable as possible and do some dry runs before striking an arc. Practice keeping a tight uniform arc and uniform travel speed.

[GoK4rtFanatic]

Thanks a lot, I’ll try some filler-free runs, clean the metal a bit more, adjust torch angle and gas flow as well as ease off the pedal/ move the arc back over the end of the weld to avoid cratering.

[KenO]

The porosity could also be cause by wind, (wind from an open door, fan?)

[BillE.Dee]

use pure argon and set the flow at the same as the opening on the cup in lpm or 2x the opening in cfh ... #6 cup, set lpm at 6 or 12-15 for cfh (there abouts). Clean the material to shiny metal not just "polished" mill scale. Get close to the material and just peak at the tungsten tip, about 10 degree tilt and PUSH the puddle. Practice making beads before adding filler. IF you have to wait for a puddle for more than 3 seconds, turn up the amps. Get the puddle established and motor.