7Jie G, et al. Tool life and wear mechanism of uncoated and coated milling inserts[J]. Wear, 1999,225~229.
8He N, et al. Cutting equation for high speed machining of difficult to cut materials[A]. International Symposium on Advanced Manufacturing Technology[C],2001.
9Kim S W, et al. Evaluation of machinability by cutting environments in high speed milling of difficult-to-cut materials[J]. Journal of Materials Processing Technology, 2001,111.