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.
2 M% F) f9 c8 e( W+ m% ~: mNote: CS=80

0 T9 Y# W- S  ]4 L, i' {RPM 1/8=
( U. ~) E9 ~% W( zRPM 3/4=

7 a' U+ ^7 v& s; |# t- S) e2 P2 ]Thanks a lot.

27149

up
up