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.: {' d) n8 N( {: g
NOTE: CS=1000 ft/min for carbide insert used.1 M/ w3 @% z5 g+ g3 v
r7 D& j: q$ U0 p) z) w3 y$ n
so RPM(1)= 5 s4 S. h$ e0 w" K RPM(2)=9 |( i9 G" j4 o1 n
RPM(3)= $ e# U# q! l# O8 R, j6 g5 q RPM(4)= ( T7 ~! l& f. k8 V9 B& u # C" z, j: O7 V7 w4 Y; F谢谢指教。