There is no way I would be messing around with valve springs and shot peening...
If supplied this way by company like PSI that's different.
Shot Peening
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Re: Shot Peening
Just in case it wasn't obvious; that means pressure at the nozzle, not the air compressor tank.David Redszus wrote: ↑Mon Nov 16, 2020 1:03 pm for steel
Dia (in)....PSI.....+Stress (KSI)
0.125......90......+60
0.067......60......+30
0.023......50......+10
0.011......30......+5
Depending on the plumbing that delta can be very large.
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Re: Shot Peening
I had connecting rods done at Precision Finishing Inc. in Sellersville Pa about 25 years ago. They have a nice website describing the shot, and screen sizes. They blasted the rods for 5 minutes with S 230 shot, amp 18 and was .012-.015-A and they made 2 test strips. I am assuming amp18 is the screen size.