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.
  a; }/ J2 Y* Y1 NNOTE:  CS=1000 ft/min for carbide insert used.

* s5 n3 S/ B' y  l6 E9 Bso  RPM(1)=      
    RPM(2)=
1 b9 f7 G6 \0 Y" }5 Q    RPM(3)=
    RPM(4)=
, A: H, M7 O# d/ s7 e4 O& a2 T
谢谢指教。