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.4 v8 K7 M9 S6 u" e- a' |% X5 D
NOTE: CS=1000 ft/min for carbide insert used.0 ^/ l' K% w1 ~' j! N( [# m
/ V! b2 Q% m+ u) c. M5 j1 ]" o2 N1 qso RPM(1)= , h. I, i! w( l) S
RPM(2)= 7 t1 c N1 E" K4 ~4 _% D RPM(3)= % @8 v: `. K+ h* o RPM(4)= r# \% c6 [1 w 3 K+ T; A7 z( B2 u* L `' H ^谢谢指教。