What is shotpeening?

Freddie's Buick

Hell No! I'm not a junior
Jan 3, 2002
I'm farming out most of my machining needs..... I am going to smoothen out all the edges and all the flash on my crank and piston rods with my grinder. :D

Does anyone out there know what shotpeening is? It's an additional cost on my rebuild that I must decide upon....:rolleyes:
Just what it sounds like...they take your parts, put them in a container with a bunch of metal shot, and shake the whole mess around. :) The process is supposed to relieve surface stress, making cracks less likely to form and work hardening the surface slightly.