Titanium Aluminium Nitride (TiAlN)

Titanium Aluminium Nitride is a bright blue/black coloured ceramic coating applied to suitably prepared surfaces by the physical vapour deposition (PVD) process. The coating is of extreme hardness, has low coefficient of friction with most metallic surfaces and resist oxidation up to 800°C.

Wallwork Cambridge produces TiAlN coatings using a process of electron beam evaporation under vacuum at a workpiece temperature of about 480°C. This method of manufacture results in coatings which are very smooth and require no post coating processing, the highly adherent deposited films strongly resist oxidation, abrasive and adhesive wear.

Typical Properties

Applications

• Dry Machining
• Machining of hardened tools and dies
• TiAlN coating will out perform titanium based coatings Such as TiN in many applications involving the cutting and machining of ferrous materials particularly with high rates of feed and speed.
• The coating is particularly resistant to oxidation and can operate at the high temperatures required for dry machining processes.