CNC题目,又再请教。

27149

A 1/8 inch pilot hole followed by a 3/4 inch dia hole to be drilled in end of a 3.875 inch dia shaft.Calculate the RPM of each drill.
! o# C/ \' T% u7 mNote: CS=80
9 b' ^" x: H! j/ V3 e; u+ c* b
% d$ k3 f1 f+ U) v3 y% p5 ZRPM 1/8=
2 Z0 b: y+ o  J, l. }2 p1 j; ]9 oRPM 3/4=
" Z+ c, d) M# F$ Y* r
4 c$ I+ R9 _' R! z8 Q: Z# tThanks a lot.

27149

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