New progress of research in diamond tool wear of nanometric machining

Tool wear is a significant factor affecting the quality of machined surface. Advanced methods about experiment of diamond tool wear in recent years for nanometric machining are summarized comprehensively and analyzed in detail. Fundamental and application of molecular dynamics are elucidated briefly, the latest research development about the effect of heat and chemical on the diamond tool wear with the aid of molecular dynamics simulation method are reviewed. The existent problems in present investigation are pointed out for the state-of-art of tool wear in nanometric cutting process, some suggestion to which should be paid attention in future for further study on tool wear are commented.