On Wednesday, October 16, 2013 8:12:42 AM UTC-5, stryped wrote:
I have been reading about stress relief and general metalworking. If a person wanted to prevent stress cracks in somethign like a t bucket frame, is it a good idea to peen weld areas? Can an air operated needle descaler work? Is hand peening possible?

I read my bobcat is capable of tig, but it lists it as "non critical". Why would that be?

One other question, I read that a root pass is not supposed to be peened? I dont quite understand that but does that mean you cant use a needle descaler to remove flux?

Also, is it good or bad to grind a weld flat after welding? Seems I read the heat from grinding can cause problems as well.