A 6.5 inch dia shaft is to be machined on a TURNING CTR to 4.5 inch dia in 4 equal cuts. If CONSTANT CS is selected calculate the RPM at the beginning of each cut. " t& @- m( A2 g9 R' m FNOTE: CS=1000 ft/min for carbide insert used. : `5 K$ R. Z! X* | $ L& C1 Q$ l8 Z9 nso RPM(1)= 3 ?+ W1 H$ B* A+ s8 O" Z% \: \) f; J RPM(2)=5 T+ V7 C' Q' _" ~7 t; K$ _
RPM(3)=$ @. `+ ]7 P) h; S' t' R7 @
RPM(4)=/ M4 J% _. l- p# r! A: R
( K8 `& z" _: h3 J
谢谢指教。