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.
Note: CS=80
2 y. K$ A% q* U4 r, y+ _: U% {
* ?3 b: x! s' N: _2 ORPM 1/8=
' R2 h  p: `5 P, d+ F0 y* [% jRPM 3/4=
" B/ q& v8 w  T2 e; c: z) u
) i3 W' T" W7 v5 b3 OThanks a lot.

27149

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