Page 30 - Tungaloy Catalog

Coated grades / PVD

Physical Vapor Deposition
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“Flash-Coating” “Premium-Coating” DLC
(Ti, A R ) N base / (A R , Ti) N base Ti(C, N, O) base coating
Grades

Increasing wear resistance (hardness) AH110 TUNGAL O Y AH330 AH710 AH730 AH740 AH905 TUNGAL O Y SH730 GH110 GH130 GH330 GH730 DS1100

Increasing impact resistance (toughness) AH120 TUNGAL O Y AH130 TUNGAL O Y AH140 TUNGAL O Y AH725 TUNGAL O Y DS1200

TUNGAL O Y

PVD coated carbides consist of a cemented carbide substrate that has a higher resistance to oxidation. The excellent toughness of both
contains a Titanium compound such as (Ti, A R)N that is coated to the coating and substrate make these grades suitable for interrupted
about 1 to 3 μm thick by means of the physical deposition (PVD) cutting. Their sharp cutting edge allows the grades to be used for
method. The lower coating temperature ensures the substrate does cutting difficult-to-cut materials that tend to be work hardened.
not form a brittle harmful layer and can maintain the original shape “PremiumTec” is treated with a CVD coating and also a PVD coated
and dimensions. The Ti(C, N, O) base coating is superior to TiN layer that reduces adhesion and enhances chip flow.
coatings in regard to wear resistance, whereas a (Ti, A R)N base coat

TUNGAL O Y

“Flash-Coating”
Higher resistance Excel for wear
to oxidation resistance

Microstructure of “Flash-Coating” Microstructure of “Premium-Coating”

n DS1100, DS1200 DLC coating grades for milling aluminum alloys

DLC = Diamond Like Carbon Smooth surface and low affinity with
d aluminum alloys
Amorphous carbon having → Low tendency to adhere
diamond-like characteristics → Good surface finish
→ Good chip control

Improved adhesion between coating and Excellent
substrate surface
→ Ensures stable machining quality

Fine grained substrate ensures sharp cutting
edge
→ Low cutting forces

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