Ugh.. any way to save a sugared weld?

[52pickup]

So, I made myself up a little back gas setup, got my bung fit up really nice, laid a mediocre weld (not too bad considering it had been a few months since I had even fired up my old dinosaur TIG machine). Then I look at the back side, and realize I forgot to turn the back gas on...

So, is there any way I can save this weld?

On the upside, it was the first one I welded in, down low and it was a 1/2" bung, so, if need be I can cut it out and put my 1" bung for the element there instead.

 

[dmfa200]

Yeah, forgetting to turn on your backing gas sucks, but hey just count this weld as practice.

The problem is is that if it's a keg it will be hard to see and control a grinder down that far but it can be done if your good with a grinder and because the material is so thin you may not be able to remove every bit of the oxidation before you go all the way through the keg. You would want to use something like a Tiger disk, not a hard grinding wheel.

Putting in a 1" bung would be a better fix.

The reason your weld was mediocre may be because you didn't have a back gas.
When welding material that thin the oxidation(sugar) can mix with the weld puddle and make it almost impossible to make a decent weld.
Stainless should flow smoothly when you have good shielding.