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TSSA
Posted: Thu Dec 24, 2015 8:08 pm
by 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?
Re: TSSA
Posted: Sun Dec 27, 2015 6:40 am
by 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.
Re: TSSA
Posted: Sun Dec 27, 2015 6:46 am
by 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.
Re: TSSA
Posted: Sun Dec 27, 2015 6:59 am
by Coldman
Are you in a draught?
Re: TSSA
Posted: Fri Jan 01, 2016 7:19 pm
by LtBadd
Coldman wrote:Are you in a draught?
and got blown away...it seems the OP has evaporated
Re: TSSA
Posted: Tue Jan 19, 2016 2:29 am
by Slawkos
Hi,
if is mild steel it may be the mill scale when pores on cap...
Slawkos