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.
3 S! A! }6 s) |) V) V/ iNote: CS=80
% j, v) S. l+ D  Y
RPM 1/8=
: [( u/ W0 o7 i" h  n; ]RPM 3/4=
$ @/ P7 t1 a7 g& c& X6 r
* \$ q6 W6 E% A$ i+ N: N+ H6 aThanks a lot.

27149

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