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.

: X9 {1 l1 G( i. ]6 {1 gso  RPM(1)=      
    RPM(2)=
' _5 g' k. f0 c6 V0 I" l! l- a* s    RPM(3)=
    RPM(4)=

6 }0 N/ b- q$ s& A谢谢指教。