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TECHNICAL INFORMATION
TECHNICAL FORMULAS
Turning
Millling
Cutting
Speed
(m/min) V c =
Rotation
(Rev/min) n =
Chip Removal
Rate
(cm 3 /min) Q =
Cutting Time
(min) T c =
Surface
Roughness
(µm) R max
D m x
π x n
1000
V c x 1000
D m x
π
V c x a p x f n
l m
f n x n
=
f n2
r ε
x
125
Rotation
(Rev/min) n =
Table Feed
(mm/min) V f =
Cutting
Output
(cm 3 /min) Q =
Feed per
Tooth f z =
n x
π x D
1000
V c x 1000
π x D
n x z c x f z
a e x a p x V f
1000
V f
n x z c
Unit
V c Cutting speed m/min
mm/rev a p Depth of cut (d.o.c.) mm
a e Radial depth of cut
(width of cut) mm
Cutter diameter mm
Feed per tooth mm/tooth
Designation Unit
D m Machining diameter mm
Feed per revolution
V c =
Designation Symbol
f n
Cutting
Speed
(m/min)
Symbol
l m Machining length mm n Rotation rev/min Q Chip removal rate cm /min D
f z A max d.o.c x feed mm Z c Effective number of teeth pcs
r ε Nose radius mm V f Table Feed mm/min
T c Cutting time min Z n Total number of teeth pcs
R max Surface roughness µm
320
3
2