What is Titanium aluminium nitride (TiAlN) or aluminium titanium nitride (AlTiN) coating?

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:

1. Coating Material                           :  TiAlN
2. Hardness (HV 0.05)                      :  3,300
3. Coating Temperature (°F)             :  930
4. Friction Coefficient on Steel (dry)   :  0.5
5. Thickness (µm)                            :  1.5 - 4
6. Oxidation Resistance (°F)             :   1,470
7. Color                                           :  black-violet
8. Foodstuff-neutral                         :   Yes

Recommended applications of TiN Coating:

1. HSS and carbide tools exposed to high thermal stresses (drilling, turning, dry machining, high speed machining)
2. plastic injection molding (molds with textured surfaces, processing of melts with fiberglass reinforcement)
3. combustion engine components.

What is TiCN (titanium carbon nitride coating)?

The titanium carbon nitride coating TiCN is distinguished by extreme hardness and high toughness. Coated tools are outstandingly wear-resistant. The low coefficient of friction protects against cold-welding. TiCN coating is not recommended for high heat applications due to the relatively low maximum operating temperature. Threading and some milling applications are a natural fit.

Coating Properties:

1. Coating Material                         :  TiCN
2. Hardness (HV 0.05)                    :  3,400
3. Coating Temperature (°F)             :  930
4. Friction Coefficient on Steel (dry)  :  0.25
5. Thickness (µm)                           :  1.5 - 5
6. Oxidation Resistance (°F)             :   840
7. Color                                         :  gray-violet
8. Foodstuff-neutral                         :   Yes

Recommended applications:

1. milling (wet, moderate cutting speed)
2. tapping, thread forming
3. punching with high mechanical loads
4. forming of ferratic and austentic steels
5. plastic injection molding (melts with abrasive fillers or high fiberglass content)

What is TiN (titanium nitride coating)?

What is TiN (titanium nitride coating)?

Titanium nitride (TiN) (sometimes known as “Tinite” or “TiNite” or “TiN”) is an extremely hard ceramic material, often used as a coating on titanium alloys, steel, carbide, and aluminium components to improve the substrate's surface properties.

Applied as a thin coating, TiN is used to harden and protect cutting and sliding surfaces, for decorative purposes (due to its gold appearance), and as a non-toxic exterior for medical implants. In most applications a coating of less than 5 micrometres (0.00020 in) is applied.

The titanium nitride coating TiN was introduced by India Carbide and it remains a proven and versatile standard coating. It provides effective protection against abrasive and adhesive wear. It is often applied for its decorative effect or as a wear indicator.

Coating Properties:

1. Coating Material                           :  TiN
2. Hardness (HV 0.05)                      :  2,400
3. Coating Temperature (°F)             :  930
4. Friction Coefficient on Steel (dry)   :  0.5
5. Thickness (µm)                            :  1.5 - 3
6. Oxidation Resistance (°F)             :   1,100
7. Color                                           :  Gold
8. Foodstuff-neutral                         :   Yes

Recommended applications of TiN Coating:

1. steel cutting
2. punching and forming (when working low-hardness materials)
3. molds for the injection molding of plastics
4. plungers of diesel injection pumps
5. medical instruments