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. % [& h6 f# f2 ?- J6 YNOTE: CS=1000 ft/min for carbide insert used.- Z2 M+ v7 c. `- T! K8 R
7 q+ p6 A1 t3 Q5 q
so RPM(1)= 6 e( n, \$ K/ y: w5 B( R1 x; Y, B
RPM(2)=6 l5 s7 ^' R" U- M) K/ |$ V5 `7 s
RPM(3)= & z/ m: o! c, K RPM(4)= 0 G* V' x% V9 u) ]. j* c9 [6 ?1 M% b+ ^5 r3 B& X4 Z
谢谢指教。