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., R3 X+ B4 \- J0 W9 V0 B
Note: CS=80 ; d4 Y* K- ^" r; T : E! ~- D- f, w* @' Y8 k& HRPM 1/8=# T/ j8 t, ~/ _$ Q: L. S1 b9 K" D
RPM 3/4= / J, C3 u0 P+ W* g * H9 O& _+ L: |8 @. hThanks a lot.
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发表于 2007-11-24 20:29
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