CNC题目,再请教。

27149

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.
  {0 ?5 w/ n/ y5 L: e1 `NOTE:  CS=1000 ft/min for carbide insert used.
2 g; G1 `* u) t9 k0 ^. k! H
so  RPM(1)=      
# S9 ^" q- P1 r7 p- G. f0 m9 K    RPM(2)=
    RPM(3)=
/ }6 Y0 g: k$ I6 ^# K6 {    RPM(4)=
2 N, I6 q5 k# ?  Y2 K+ B2 E( R' t
谢谢指教。