trying to prep my dad for his tig root test so he could come on site as ASME B31.3 qualified. so i laid this bead as an example of what a tig root should sorta look like.

sorry in advance for the shitty quality, my phone doesn't seem to have a macro mode. lol



just carbon tig in the flat, 3/32 filler, 1/8 tungsten, no idea what amperage since it's running off a lincoln SA-200 generator


that's actually the first time i've done lift start/scratch start with tig. ever. so that kinda explains the defect on my stop.
lol

 

why does it curve?

i can't really tell ya much with that pic... sorry

 

i was going straight and then decided i'd like to see if i could make a corner without disrupting the 'flow' of the weld. *shrug*


yea the pic sucks, but whatever, i don't carry a camera with me everywhere so it's hard to post stuff.