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2
Cutting Tools
Order
No.
∅ e8
mm
etc.
Example calculation (∅ 4.0 mm end mill, mild steel up to 850 N / mm
2
)
etc.
teeth-
number
6WHHOV
XSWR
1PP
f
z
mm
Value sought 1:
n =
number of revolutions per minute (r/min)
Formula:
n =
v
c
x 1000
__________
D x ∏
Calculation:
n =
30 m/min x 1000
__________________
2,5 mm x 3,14159
Solution:
n =
3820/min
0101
1,0
2
0,003
0102
1,5
2
0,003
0103
2,0
2
0,003
0104
2,5
Value sought 2:
v
f
=
feed rate (mm/min)
2
0,003
0105
2,8
Formula:
v
f
=
n x z x f
z
2
0,003
0106
3,0
Calculation:
v
f
=
3820/min x 2 x 0.003 mm
2
0,007
etc.
etc.
Solution:
v
f
=
22.9 mm/min
etc.
etc.
Short Codes
Cutting speed and feed rate
All information regarding cutting speed and feed rate correspond to a recommended guideline.
This requires stable machine conditions, a low-vibration workpiece and the use of a suitable coolant.
Symbol mapping
Order
no.
Steels
up to
850
N/mm
2
Steels
up to
1000
N/mm
2
Steels
up to
1400
N/mm
2
Steels
up to
42 HRC
Steels
up to
52 HRC
Steels
up to
56 HRC
Steels
up to
60 HRC
Hard
processing
over
60 HRC
Stainless
and acid-
resistant
steels (INOX)
Ti steels,
Ti alloys,
special
steels
Cast iron
materials
Al,
AI and
Mg alloys
Copper,
brass,
bronze
9999
C
C
C
C
C
U
C
V
C
C
recommended
U
suitable
V
limited suitability
Mapping of values cutting speed V
c
Order
no.
Steels
up to
850
N/mm
2
Steels
up to
1000
N/mm
2
Steels
up to
1400
N/mm
2
Steels
up to
42 HRC
Steels
up to
52 HRC
Steels
up to
56 HRC
Steels
up to
60 HRC
Hard
processing
over
60 HRC
Stainless
and acid-
resistant
steels (INOX)
Ti steels,
Ti alloys,
special
steels
Cast iron
materials
Al,
AI and
Mg alloys
Copper,
brass,
bronze
9999
35
35
25
25
19
30
30
50
35
font size bold =
recommended
font size normal = suitable
The stated feed values relate to the groove cutters.
Material
eg.
HSS
High-speed-
HSS
HSS
Co
High speed-
steel with cobalt
HSS-E
PM
Metallurgical powder HSS
eg.
Solid
carbide
K10/K20
Solid carbide
Sort K10/K20
Solid
carbide
NANO
Solid carbide with crystalline
nanostructure
Solid
carbide
UF
Ultra-fine grain
solid carbide
Standard
eg.
DIN
844-K
Equiv to DIN 884
design, short
DIN
6527
Equiv. to DIN 6527
Factory
standard
Company standard
Type
eg.
Type
W
finishing teeth
for soft material
Type
N
finishing teeth
for normal material
Type
H
finishing teeth
for hard material
eg.
Type
NF
Roughing finishing teeth
for normal material
Type
NRf
Fine-roughing teeth
for materials with greater
durability
eg.
Type
WR
Course-roughing teeth
for-soft materials
Type
NR
Normal roughing teeth
for normal materials
Type
HR
Fine-roughing teeth
for hard materials
Number of
cutting edges
eg.
Z
6–8
6-8 cutting edges
shaft design
eg.
DIN
1835-B
Cyl. shaft with
Carrier surface
acc. to DIN 1835 B
DIN
6535-HA
Unit cyl. shaft
DIN
6535-HB
Unit shaft
with lateral
carrier surface
Angle
eg.
45°
Right spiral
with 45° angle
Rake angle
Application
eg.
Feed direction
Dry machining possible
Design:
extra-short, short, long,
extra-long
eg.
Cast, weak
interrupted cut
Steel, strong
interrupted cut
Short Codes and Cutting Data
248