ALUMINUM-TITANIUM (AlTi) and
TITANIUM ALUMINUM (TiAl) FOR HARD MATERIAL COATINGS
AND DECORATIVE APPLICATIONS
Flexible coating for tough machining environments through specific combinations of layer structure and layer properties with machining functionalities to achieve longer tool life by increasing wear resistance.
Aluminum-titanium with titanium> 50 at% is also ideal for decorative applications
Prevention of oxidation during high-temperature machining and achievement of high chemical resistance
through AlTiN coatings
Wet and dry machining during milling, drilling and turning under extreme mechanical stress through multilayers in nanometer thickness with specific material compositions (at%) for extended tool life.
Low coefficient of friction 0.5µ-0.7µ
Layer thickness 1-4 µm
Maximum application temperature 900 ° C
Cooling not necessary
Nano hardness 35-38 GPa
Higher cutting speed
Higher cutting temperature
Precision tools for machining hard materials
Special drill made of hard metal
14 times longer service life possible depending on the application
Using aluminum-titanium is the manufacture of sophisticated AlTiN-based Coatings possible that:
remain stable despite higher cutting speeds and higher cutting temperatures
have high hot hardness and oxidation resistance
even at high temperatures are wear-resistant
allow a massive reduction in set-up times
Excellent sliding properties for improved chip evacuation and high cutting speeds and high workpiece feed rates
remain flexible even with high-performance forming
are suitable for demanding precision components
The AlTiN-based layers remain wear-resistant even at high temperatures. This increases the service life of the tools, and fewer tool changes are required. The thermal stability and wear resistance of the AlTiN layer are particularly beneficial when machining HSS. Indexable inserts, milling and drilling applications are often coated with AlTiN.
TO MEET THE HIGH MARKET AND CUSTOMER REQUIREMENTS
Numerous companies achieve remarkable improvements in the performance of tools and components through the coating materials and auxiliaries optimized by Avaluxe.
Experience examples from projects:
Integration of AlTiN-based with TiSiXN layers to increase ductility for superior wear resistance, reduce cracking during high-temperature machining.
Multi-metal doping with AlTiN coating helps prevent oxidation during high-temperature machining and offers high chemical resistance.
Inclusion of chromium-based alloys in the AlTiN system for graded load profiles for machining difficult-to-machine materials such as hardened steel, nickel alloys and titanium metal while minimizing cracking and improving the resistance to chipping.
Reducing the roughness for AlCrN layers pays off to a great extent with AlTiN-based coatings.
Even without repolishing, the Avaluxe formula and an optimized coating process achieve an average surface roughness of less than 25 nm for a 3 micrometer thick coating. This becomes a highly efficient chip transport supported. The layers are also suitable for use in turbine engines where a high gas throughput is required.