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.
0 p$ o! A9 p& A+ ~1 _! _" Y% o+ V
so  RPM(1)=      
    RPM(2)=
    RPM(3)=
) P3 b$ O, `* E    RPM(4)=

谢谢指教。