Engineering Guide CDA3000
A-7
Appendix A  Formula bank
DE
EN
1
2
3
4
5
6
7
A
b Face width mm
d Cutter diameter mm
d
1
Drill diameter mm
d
2
Predrill diameter mm
f Advance per revolution mm
F
H
Main cutting force N
F
m
Mean cutting force in milling N
F
St
Plunger force in pressing N
K
S
Special cutting force (general) N/mm²
k
C
Specific cutting force for various 
cutting thicknesses N/mm²
k
C11
Specific cutting force for face 
cross-section 1 mm x 1 mm N/mm²
l
S
Length of cut line mm
n
B
Drill speed rpm
n
F
Cutter speed rpm
Basic equation
Turning
Milling
Shearing and cutting
Drilling
Cutting speed during drilling
Pressing
Table 7.6 Work output for metalworking machinery
Work output for metal-
working machinery
P
s
F
H
v
s
⋅
60000
--------------=
P
s
F
H
n
P
2 π r⋅⋅⋅⋅
60000
------------------------------------=
P
s
z
E
F
m
⋅
60000
---------------
v
s
⋅
z
E
F
m
⋅
60000
---------------
d π n
F
⋅⋅
1000
--------------------
⋅==
P
s
K
s
l
s
sv
s
⋅⋅⋅
60000
-----------------------------=
P
s
z
E
d
1
d
2
–()s
Z
K
s
⋅⋅⋅
60000
-------------------------------------------------
v
s
⋅=
v
s
d
1
d
2
+
2
----------------
n
B
π⋅
1000
-------------
⋅=
P
P
F
St
v
St
⋅
60000
-----------------=