The influence of the tungsten-carbide (WC) particle size and Co contents of cemented carbides on polycrystalline diamond tool wear during turning was investigated experimentally. The main results obtained were as follows. (1) Tool wear increased with increasing Co content. (2) It is important to cut off the binder between the WC particles and the Co. (3) Cemented carbides containing small WC particles are more effective than cemented carbides containing large particles.

1. [1] Technical Research Institute, Japan Society for the Promotion of Machine Industry, “Cutting Data Files,” Tokyo, Japan, 86-097, 1988. (in Japanese)
2. [2] Technical Research Institute, Japan Society for the Promotion of Machine Industry, “Cutting Data Files,” Tokyo, Japan, 92-0298, 1995. (in Japanese)
3. [3] Technical Research Institute, Japan Society for the Promotion of Machine Industry, “Cutting Data Files,” Tokyo, Japan, 95-0321, 1997. (in Japanese)
4. [4] Technical Research Institute, Japan Society for the Promotion of Machine Industry, “Cutting Data Files,” Tokyo, Japan, 95-0323, 1997. (in Japanese)
5. [5] Technical Research Institute, Japan Society for the Promotion of Machine Industry, “Cutting Data Files,” Tokyo, Japan, 95-0325, 1997. (in Japanese)
6. [6] S. J. Heo, T.Miyamoto, S. Hanasaki, and J. Fujiwara, J. of the Japan Society for Precision Engineering, Vol.69, No.12, pp. 1724-1728, 2003. (in Japanese)
7. [7] S. J. Heo, T. Miyamoto, J. Fujiwara, and S. Hanasaki, Proc. of the Sixth Int. Conf. on Progress of Cutting Technology, 2002, pp. 218-223.
8. [8] S. J. Heo, T. Miyamoto, J. Fujiwara, S. Hanasaki, and S. Amano, J. of the Japan Society for Precision Engineering, Vol.73, No.8, pp. 896-900, 2007. (in Japanese).
9. [9] H. Suzuki, “Cemented Carbide and Sintered Hard Materials,” Maruzen, Tokyo, p. 120, 1986.