Use of a doped with foreign atoms diamond layer for detecting the degree of wear of an undoped diamond functional layer of a tool

摘要

Use of a doped with foreign atoms first diamond layer of polycrystalline diamond, which is arranged on a metal surface of a cutting tool, for detecting the degree of wear of an undoped polycrystalline second diamond layer, which is arranged on the doped diamond layer and which forms a functional area of the cutting tool, wherein at least one physical parameter is detected continuously or periodically during operation of the tool, and wherein a change in the parameter indicates the degree of wear of the undoped second diamond layer.