Titanium aluminium nitride (TiAlN) or aluminium titanium nitride (AlTiN; for aluminium contents higher 50 at.%) stands for a group of metastable hard coatings consisting of the metallic elements aluminium and titanium, and nitrogen.
The optimized relationship of hardness and residual compressive stress of the titanium aluminum nitride coating TiAlN increases the stability of the cutting edges of machining tools. Its outstanding thermal and chemical resistance permit dry cutting and improvements in performance of highly stressed components. The high hardness of this mono-layer coating gives outstanding protection against abrasive wear and erosion.
Coating Properties:
- Coating Material : TiAlN
- Hardness (HV 0.05) : 3,300
- Coating Temperature (°F) : 930
- Friction Coefficient on Steel (dry) : 0.5
- Thickness (µm) : 1.5 - 4
- Oxidation Resistance (°F) : 1,470
- Color : black-violet
- Foodstuff-neutral : Yes
Recommended applications of TiN Coating:
- HSS and carbide tools exposed to high thermal stresses (drilling, turning, dry machining, high speed machining)
- plastic injection molding (molds with textured surfaces, processing of melts with fiberglass reinforcement)
- combustion engine components.
