Abstract

The accuracy of cnc diamond machining processes in directly related to the form accuracy of the diamond cutting tools available. Consequently both diamond tool manufacturers and machining houses require methods for inspection. The accuracy of the cutting edge which is primarily generated by the intersection of a cylinder/cone with a flat, must be typically 75-150nm. Most test methods rely on observation of the final generated cutting edge via high powered microscope. Unfortunately this means that the diamond tool manufacturer cannot qualify the accuracy of the cylindrical/conical portion of the tool prior to lapping the final flat which generates the final cutting edge. Therefore errors can only be detected on a finished tool which may result in costly re-working.

© 1992 Optical Society of America