Page 111 - Carboloy Catalogue - English

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milling cutters
milling inserts
turning holders
turning inserts
techNICAL info
113
Quantity
Formula
Unit
Note
Number of revolutions
[rev.min
-1
]
Cutting speed
[m.min
-1
]
Feed per revolution
[mm.rev
-1
]
Feed per minute
(Speed of feed)
[mm.min
-1
]
Feed per tooth
[mm.tooth
-1
]
Chip cross section
[mm
2
]
Chip thickness
(For insert with straight
edge)
[mm]
Chip thickness
(For round cutting insert)
[mm]
Metal removal rate
[cm
3
.min
-1
]
Power demand
[kW]
Approximate
power demand
[kW]
n
Number of revolutions
[rev.min
-1
]
D
Diameter
(of tool or work piece)
[mm]
v
c
Cutting speed / Velocidade de corte
[m.min
-1
]
f
rev
Feed per revolution
[mm.rev
-1
]
f
min
Feed per minute
(sometimes called speed of feed)
[mm.min
-1
]
f
z
Feed per tooth
[mm.tooth
-1
]
z
Number of teeth
[1]
Material
Steel
Cast iron
Al
Coefficient
x
24 000
30 000
120 000
P
c
=
a
p
. a
e
. f
x
h = f
z
. sin
k
r
P
c
=
a
p
. a
e
. f
min
60 . 10 
6
.
h
. k
c
. k
g
Q =
a
p
. a
e
. f
min
1000
h = a
p
D
f
z
.
A = f
z
. a
p
f
z
=
f
rev.
z =
f
min
n . z
f
min
= v
f
= f
rev
. n = f
z
. z .n
v
c
. 1000
D .
p
n =
= f
z
. z
f
min
n f
rev
=
p
. D . n
1000
v
c
=
A
Chip cross section
[mm
2
]
f
rev
Feed per revolution
[mm.rev
-1
]
a
p
Axial depth of cut (depth of cut)
[mm]
a
e
Radial depth of cut (width of cut)
[mm]
k
r
Major edge setting angle
[°]
h
Chip thickness
[mm]
v
c
Cutting speed
[m.min
-1
]
f
rev
Feed per revolution
[mm.rev
-1
]
f
min
Feed per minute
(sometimes called speed of feed)
[mm.min
-1
]
f
z
Feed per tooth
[mm.tooth
-1
]
Q
Material removal rate per minute
[cm
3
.min
-1
]
P
C
Power demand
[kW]
a
p
Axial depth of cut (depth of cut)
[mm]
a
e
Radial depth of cut (width of cut)
[mm]
f
Feed
[mm.rev
-1
]
k
c
Cutting force per mm
2
[MPa]
k
g
Coefficient of influence of angle
g
0
[°]
h
Efficiency of milling machine,
usually
h
= 0,75
[-]
x
Coefficient of influence
of work piece material
[-]
formulae for calculation of cutting parameters
Milling