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.
NOTE:  CS=1000 ft/min for carbide insert used.
  K# `! Y! \& M8 f+ r6 E/ l5 _
% O/ s3 a1 \7 w+ H& Dso  RPM(1)=      
    RPM(2)=
" q5 k& ]' H; e0 I) A* F    RPM(3)=
1 T2 F! u4 v+ @& u) Q3 p1 H    RPM(4)=
4 w5 R  C# {6 Q3 s4 L! m2 U
- Z6 O! T* M8 s6 Q6 y" v2 s4 L5 ~谢谢指教。