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.

so  RPM(1)=      
0 }% u+ Q# c/ K( J7 P% _4 \, P    RPM(2)=
    RPM(3)=
) C' N" |. L" _2 Y  r* l    RPM(4)=

. U# |0 O' s  A. z8 E  s谢谢指教。