NOTNINGSBESTENDIG SAMMANSATT KROPP FOR BEARBETNING AV METALLISKA OCH ICKE METALLISKA MATERIAL

摘要

A composite body, for use as a part resistant to wear or as an insert in a cutting tool, comprises a substrate carrying one or more surface layers of hard material devoid of binder. The thickness of each such surface layer is 1 to 50 mu m and one of the layers is composed of a multiplicity of individual layers each having a thickness of 0.02 to 0.1 mu m. Alternate individual layers consist of hard material of different composition.