METHOD FOR PROCESSING WORKING MATERIAL, METHOD FOR MANUFACTURING A MACHINE TOOL AND MEMBER USING A DIAMOND TOOL WITH NANO-POLYCRYSTALLINE DIAMOND

摘要

A method for processing a workpiece using a diamond tool having a nano polycrystalline diamond or a vapor phase synthetic single crystal diamond, wherein the nano polycrystalline diamond contains nitrogen atoms of 10 ppm or more and 1000 ppm or less and the vapor phase synthetic single crystal diamond contains 1 ppm or more and 100 ppm or less The temperature of the diamond tool at the contact point between the material to be processed and the diamond tool is 400 DEG C or less and the distance from the contact point is 3 cm or less in the oxygen concentration Is 20% or less.