Archie wrote:

Dale Smith wrote:

A long time ago, I seem to remember reading that glass bead blasting was
recommended to race prep connecting rods and "relieve internal

stresses".  Is this

true?  or just another "hype"?

If true, it would be a plus in it's favor, but then again, the rotors

don't fail

anyway, right?

Glass "Beads", not glass blasting media is used to peen
soft metals such as aluminum. It breaks down with use,
and then can be used for cleaning purposes as it becomes
multi-faceted.
#230 chilled iron spherical shot is used to peen steel and
iron. (cranks & rods).

This process will relieve some minor stresses, but the main
purpose is to impact the surfaces for compression and
superficial stress riser removal.
Most effective on cast parts.
Archie

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