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Cutting Tools
2
Materials
e.g.
HSS
High-speed-
HSS
HSS
Co
High speed-
steel with cobalt
HSS-E
PM
Powder metallurgical
high performance
high-speed steel
e.g.
Solid
carbide
Solid carbide
Standard
e.g.
DIN
844-K
Equivalent to DIN 884
design, short
DIN
6527
Equivalent to DIN 6527
Factory
standard
Factory standard
Type
e.g.
Type
W
Finishing teeth
for soft material
Type
N
Finishing teeth
for normal material
Type
H
Finishing teeth
for hard material
e.g.
Type
NF
Roughing finishing
teeth for normal
materials
Type
NRf
Fine-roughing teeth
for materials with greater
durability
e.g.
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
e.g.
Z
6–8
6-8 cutting edges
Shank design
e.g.
DIN
1835-B
Cyl. shank with
carrier surface
acc. to DIN 1835 B
DIN
6535-HA
Unit cyl. shank
DIN
6535-HB
Unit shank
with lateral
carrier surface
Angles
e.g.
45°
Right spiral
with 45° angle
Application
e.g.
Feed direction
Dry machining possible
Design:
extra-short, short, long,
extra-long
e.g.
Cast, weak interrupted
cut
Steel, strong
interrupted cut
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.
Short Codes
Cutting speed and feed rate
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
machining
over
60 HRC
Stainless
and acid-
resistant
steels (INOX)
Ti steels,
Ti alloys,
special
steels
Cast iron
materials
Al, Al 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 Vc
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
machining
over
60 HRC
Stainless
and acid-
resistant
steels (INOX)
Ti steels,
Ti alloys,
special
steels
Cast iron
materials
Al, Al and
Mg alloys
Copper,
brass,
bronze
9999
35
35
25
25
19
30
30
50
35
font size bold =
recommended
font size normal = suitable
Order
no.
∅ e8
mm
etc.
Example calculation (∅ 4.0 mm end mill, mild steel up to 850 N / mm2)
etc.
teeth-
number
Steels
up to
850
N/mm
2
f
z
mm
Value sought 1: n = number of revolutions per minute (r/min)
Formula:
n =
v
c
x 1000
__________
D x ∏
Calculation:
n =
35 m/min x 1000
__________________
2.5 mm x 3.14159
Solution:
n =
4450/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.
The stated feed values relate to the groove cutters.
Short Codes and Cutting Data
256