[BrettMurphy]

so im working on getting my TSSA certification in TIG. i welded the root pass with no errors and my 2 filler passes. i get to the cap and everytime i go to grind it i find porosity. its not my angle and my gas is set correctly. i dont know what i could be doing wrong. even if they find a dot of porosity, they will not bend it. any suggestions?

[Coldman]

We need more info on your process. Size amps flow rate material etc.
Porosity is either contamination or poor gas shielding. More comments will accompany more info.

[Coldman]

If its on your cappin run its insufficient shield gas coverage.
Some suggestions :
Check for leaks in your line, increase cup size and flowrate. Use a gas lense.

[Coldman]

Are you in a draught?

[LtBadd]

Are you in a draught?

and got blown away...it seems the OP has evaporated

[Slawkos]

Hi,

if is mild steel it may be the mill scale when pores on cap...

Slawkos