On Wed, 16 Oct 2013 06:12:42 -0700 (PDT), 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?
Peening on a steel frame won't do much. Ir works well on iron and
cast iron and cast steel, but not so well on rolled steel, steel
plate, or pressed steel.