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Cutting Tools
2
Name and formulas
RPM
n =
Vc • 1000
(U/min)
π • D
ap = depth of cut
(mm)
D = workpiece diameter
(mm)
f = feed
(mm/rev.)
n = speed
(rev/min)
Vc = cutting speed
(m/min)
κ
= setting angle
(°)
Cutting speed
Vc =
n • π • D
(m/min)
1000
Name and formulas
RPM
n =
Vc • 1000
(U/min)
π • D
c
a
e
= radial cut depth (contact width)
(mm)
ap = axial cut depth
(mm)
D
c
= milling diameter
(mm)
f = feed/rev
(mm/rev)
f
z
= feed/tooth
(mm/tooth)
z
c
= effective number of teeth for calculating feed.
n = speed
(rev/min)
Vc = cutting speed
(m/min)
V
f
= feed rate
(mm/min)
Cutting speed
Vc =
n • π • D
c
(m/min)
1000
Feed rate
V
f
= n • z
n
• f
z
(mm/min)
V
f
= n • z
c
• f
z
(mm/min)
Feed/revolution
f = z
n
• f
z
(mm/U)
f = z
c
• f
z
(mm/U)
Cutting speed and revolutions copy milling
Vc =
n • π • D
w
(m/min)
1000
n =
Vc • 1000
(U/min)
π • D
w
D
w
= 2 •
√
ap (D
c
-ap) (mm)
Turning - cutting data
Milling – cutting data
Cutting data
515