Table of Cutting Formula
Metric MM
MM
English INCH
INCH
π Dc N
π Dc N
Vc =
Vc =
1000
12 Vc 12 π Dc
Vc 1000
N = Vf = T =
N = Vf =
π Dc
N Z fz
N Z fz
Vf L
Vf L
T =
Vc= Cutting Speed
Vc= Cutting Speed
inch/min
m/min
Dc= Cutter Diameter
Dc= Cutter Diameter
inch
mm
N= RPM
N= RPM
rev/min
rev/min
Vf Feed Speed =
Vf Feed Speed =
inch/min
mm/min
fz
=
fz
=
Feed Per Tooth
Feed Per Tooth
inch/tooth
mm/tooth
fn
=
fn
=
Feed Per Revolution
Feed Per Revolution
inch/rev
mm/rev
Z
=
Z
=
Number of Flutes
Number of Flutes
Z
Z
T
=
T
=
Time of Cut In Minutes
Time of Cut In Minutes
inch
mm
L
=
L
=
Cut Length
Cut Length
mm
inch
Ap
=
Ap
=
Axial depth of cut
Axial depth of cut
mm
inch
Ae
=
Ae
=
Radial depth of cut
Radial depth of cut
mm
inch
375
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