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.
- g3 F: I2 J/ |3 {% ]+ {) oNOTE:  CS=1000 ft/min for carbide insert used.

7 \2 j$ `. g. A3 p" a' @; Mso  RPM(1)=      
    RPM(2)=
+ I+ {! ~' M+ v% z4 f  V    RPM(3)=
    RPM(4)=
' x9 K* _' Z  R" a3 K, ^1 S0 Q
# u0 V  o5 o% v% u谢谢指教。