Page 85 - Carboloy Catalogue - English

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milling cutters
milling inserts
turning holders
turning inserts
techNICAL info
87
PU20
10 20 30 40
P
M
K
N
S
H
- Substrate with high content of cubical carbides.
- Nano multilayer PVD coating with gradient transitions.
- Reduced internal stresses in the coating.
- Increases the hardness.
- Reducing the notch wear on the main cutting edge.
- Good reliability.
- Difficult cutting conditions.
CU15
10 20 30 40
P
M
K
N
S
H
- Submicron substrate without cubical carbides.
- Thick layer of MTCVD coating with main layer of Al
2
O
3
.
- Finishing up to roughing.
- Mainly for materials group K, suitable also for groups P and H.
- Medium and higher cutting speeds.
- Continuous cut at good cutting conditions.
CU25
10 20 30 40
P
M
K
N
S
H
- Functional gradient substrate.
- Modern medium-thick special MT-CVD coating.
- Special adjustment after coating.
- For finishing up to roughing.
- Versatile grade for machining of material groups P, M, K and contionally for group S.
- Medium and higher cutting speeds.
- Continuous and interrupted cut.
Designation and microstructure Application
areas
Workpiece
Material Group
Grade description and recommended application
grades for turning
U10
10 20 30
40
P
M
K
N
S
H
- Submicron grade without cubical carbides with low content of cobalt.
- General-purpose grade, suitable for all groups of work piece material except P.
- Small up to medium chip cross section.
- Steady cutting conditions.
turning