What is PVD coating?
The aim of PVD coating is to significantly improve a tool’s performance on its surface by creating a thin but very hard adhesive layer with high resistance to abrasive wear, a low friction coefficient, resistance to high-temperature oxidisation and increased hardness at high temperatures.
PVD (Physical Vapour Deposition) coating is performed in high vacuum, where a coating metal (e.g. Ti) becomes gaseous, and when a reactive gas is added, a thin, hard and exceptionally adhesive layer forms on the tool’s surface (e.g. TiN = titanium nitride). The various PVD methods differ in the form of metal evaporation.
There is a wide range of PVD coating applications. PVD coatings are used in various machining applications, hot and cold forming, die casting, plastic material processing applications; their application is important in the food industry, health care, and for various decorative purposes.