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.' u" S& Q4 W7 u0 U6 \
NOTE: CS=1000 ft/min for carbide insert used.3 X5 M2 _1 q% b! h) h4 Z6 P
" x& I# i9 z* L: \
so RPM(1)= * W' X- t6 I/ G8 W7 d
RPM(2)= $ F# s: j2 @+ p) C" f* Q RPM(3)=* X6 z0 q% c2 O1 Q: l: v& W: Z. s/ |
RPM(4)= : g0 c% G; F4 G0 I4 }( T: q% f3 `6 c: ]+ Q: `5 @
谢谢指教。