Grey Wispy Area Around Tig Weld?

[Vintage Engine Repairs]

Hey, what causes the whispy white haze ( curved like a c shape in the direction of travel) on either side of my tig welds? This is mild steel 2mm thick and 316l stainless steel filler, 8lpm argon, 80 amps, 7 seconds postgas, purple tungsten @ 2.4mm dia and 9mm stick out ground to 30 degrees, 2-3mm between tungsten and work piece, number 6 cup / 10mm. I’m not interested in huge gas lenses, I really want to get my technique right and fix my issues rather than cover them up with huge gas flow. Thanks in advance.

Second attempt at tig welding so very new.

 

[voipio]

Cumulo weldus ;-)

Probably down to the shielding gas not providing sufficient protection to the metal as it cooled. Angling the cup slightly more "face-on" to the metal, or increasing the shielding gas flow might reduce it. The beads don't look too bad.

 

[Vintage Engine Repairs]

Hahaha yeah I need to wait for the puddle to form and put less filler so they’re not so proud and bulbous LOL. Thank you!

 

[leadpig]

do you mean the ac cleaning