Duplex Surface Treatment
Duplex Surface Treatment as the name implies, is the application of two processes to the surface of steels. In the case of the IONTEC-H range of Duplex processes TTI provide, Plasma Nitriding steels before applying a hard PVD Coating always significantly enhances the tool life. The hard nitride layer beneath the PVD coating supports the coating under high forces applied to the surface of tools during operation.
Although a lot of the steels which are IONTEC-H treated by TTI Group are press tool forming dies (where outstanding results have been achieved), the Duplex Surface Treatment process can, and is, applied very successfully to components, where the steel substrate is normally not hard enough to work in the application. Nitriding the steel before application of the wear resistant PVD coating improves fatigue and indentation resistance. This allows the coating to function correctly.