Tribological Considerations Of The Diamond Single-Point Tool

To date, the tribology of the single-crystal diamond cutting edge and its effect on the diamond single-point machined optical surface is poorly understood. The factors that result in certain diamond tools having superior wear performance to others is equally uncertain. In addressing these issues, the present understanding of the tool-wear mechanisms involved in machining is reviewed, with particular emphasis on ultrahard tool materials. Current research at the Naval Weapons Center has attempted to extend this knowledge to the field of diamond-turned optics and identify the processes that degrade the performance of the tool.