Welding Certification test Q&A and tips and tricks
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BrettMurphy
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    Thu Dec 24, 2015 7:54 pm

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? :twisted:
Coldman
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    Mon Dec 15, 2014 2:16 am
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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.
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Coldman
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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.
Flat out like a lizard drinkin'
Coldman
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Are you in a draught?
Flat out like a lizard drinkin'
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Coldman wrote:Are you in a draught?
and got blown away...it seems the OP has evaporated
Richard
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Hi,

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

Slawkos
Slawkos
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