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Re: Shot peening in a blasting cabnet?
Shot PEENING and shot BLASTING are entirely different processes for entirely different end-results.
Shot peening is a surface treatment that increases fatigue life. It requires special tooling, and is NOT something done at home or even by a small business. This is a serious metal-working process, with aerospace applications--and aerospace quality assurance.
Shot blasting is a surface-cleaning method. Lots of automotive machine shops use a shot-blasting cabinet. The shot knocks the carbon and rust off the casting. Nothing special about it--you load parts into a rotisserie, the machine throws the shot at the part using a centrifugal "pump", and the shot pounds the carbon and rust into dust. If you're smart, you protect the machined surfaces of the casting--the lifter bores, the crank journals, that sort of thing.
I would not expect a normal sandblasting or glass-beading cabinet to accept the steel shot used in shot blasting.
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