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. / J8 a# o6 g& {- }NOTE: CS=1000 ft/min for carbide insert used.( }. ~1 @1 f7 _: Q4 [2 ?3 O
) u3 M4 z: G8 {; x9 [4 c/ J9 g( i! e8 Yso RPM(1)= 0 @2 A; T+ U, o5 M9 Z4 j7 v$ e
RPM(2)= t3 t8 }: R( [0 v3 h V1 J
RPM(3)=3 m ~! X: R4 x' J. P7 Q$ d
RPM(4)= 5 N, k- t4 L: q3 q. l, y& Q. G, e' h3 |6 |
谢谢指教。
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发表于 2007-11-23 22:20
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