hey guys i tired it with an aluminum backer plate. Got full penatration at my first attempt. All my mates were surprised how easy it supposed to be. I wanna post up a pic here with my phone but i duno how.

Anyways thanks for all the advice.

Gordon

Big Gear Head - so do u mean the purging would affect the front side of the weld as well?

Rick - there was no backer plate. Backer plate was never exist in our school tasks i duno why. im gonna try it your way this week. thank you for your advice. Gfab70 - the instructors only demonstrate how to set up the machines. They showed us how to mig and stick a 1F at the beginning and thats all....

Hi there, couldnt find the stainless steel page so i am just gonna post it here. I have been struggling for my advance tig course at school for the stainless steel, hope there is someone could help me out a bit. The task is supposed to be easy, tig welding, Stainless steel, 1G position. 1.6mm or 3mm...