Information on this is available under “Special surface polish” in the Services menu section. If required, we will process an additional surface polishing for truly special needs. This is why we naturally rely on the latest technology when it comes to pre-treatment systems. Optimally preparing a surface is essential for the maximum performance and excellent surface quality the DUPLEX method offers. Significantly improved absorbing power against compressive stress.Increased supporting effect for PVD hard coatings. for the machining of high-tensile sheet metal. This and the fact that the coating temperature is below 500° C yields numerous positive effects – e.g. In the course of the DUPLEX treatment, the ideal formation of a hardness gradient happens from the tool’s core over the edge area to the tool’s surface. Therefore, it significantly improves the PVD coating’s performance.Įspecially in the field of metal forming, the DUPLEX treatment is a high-performing alternative to CVD coatings – not least due to the significantly shorter processing / delivery times (three to five work days). This combined method (two steps in one process) yields a defined increase in surface hardness of the tool material. Our DUPLEX treatment consists of a thermo-chemical process (plasma nitriding), combined with the deposition of an Eifeler PVD coat immediately afterwards.
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