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
6 g: S5 [; l* h+ F
; E8 w5 B: I- C4 `% U& tRPM 1/8=
2 D4 f. O0 P3 |) z& Y2 t$ U* wRPM 3/4=
1 b. a) _  w! A9 k5 j# i3 s  d
( u3 K7 r; B# G2 _Thanks a lot.

27149

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