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.
" h/ s- y# p' s7 b+ o# _; y  m) r' PNOTE:  CS=1000 ft/min for carbide insert used.

9 B/ b  t" m& gso  RPM(1)=      
    RPM(2)=
  J3 b: J1 t/ e7 w# j) k    RPM(3)=
# D. G; e7 s; N1 z    RPM(4)=
- M" N; ^, q8 Y7 x- S! x
谢谢指教。