Investigation on Material Property of Electrically Conductive Polycrystalline Composite Diamond (EC-PCD)

Abstract:

Electrically conductive polycrystalline composite diamond (EC-PCD) material, which consists of electrically conductive diamond grits, has recently been developed for the purpose of providing the material with both excellent tool property and machinability. This paper deals with the material property and the wear characteristics of EC-PCD. The result shows that the EC-PCD is superior in heat resistance compared with the conventional PCD. And the EC-PCD shows low frictional wear at high temperature in sliding test against stainless steel disk. Furthermore, in a cutting test of aluminum alloy, the EC-PCD cutting tool shows the same wear characteristics as the conventional PCD tool.

• Periodical: Advanced Materials Research (Volumes 126-128)
• Pages: 639-644
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.126-128.639
• Online since: August 2010
• Authors: Manabu Iwai, Shinichi Ninomiya, Gaku Sugino, Kiyoshi Suzuki
• Keywords: Cutting Tool, Electrically Conductive Diamond, Material Property, PCD, Wear Property

References

[1] Product brochure of Element Six.

[2] Y. Seki, K. Suzuki, T. Uematsu, et al.: Application of polycrystalline composite products (PCP) to a grinding wheel - 1st report, Proceeding of JSAT Conference, ABTEC'96 (1996) pp.349-353. (in Japanese).

[3] K. Suzuki, S. Sano, M. Iwai, T. Uematsu, et al.: A New Application of PCD as a Very Low Wear Electrode Material for EDM, Proceedings of 2nd International Industrial Diamond Conference (2007).

DOI: 10.4028/www.scientific.net/kem.291-292.549

[4] K. Suzuki, S. Ninomiya, M. Iwai, et al.: Wire EDM characteristics of EC-PCD, Proceeding of JSAT Conference, ABTEC2009 (2009) pp.109-112. (in Japanese).

[20] [40] [60] [80] Principal force N R 0. 2mm R 0. 5mm Corner R S-PCD(010) EC-PCD(010) (a) Principal force.

[5] [10] [15] [20] Thrust force N R 0. 2mm R 0. 5mm S-PCD(010) EC-PCD(010) Corner R (b) Thrust force Fig. 10 Comparison of cutting force in interrupted cutting of Al alloy (V=800m/min, f=0. 3mm/rev, a=0. 3mm, L=15km).

[5] [10] [15] [20] Flank wear width µm R 0. 2mm R 0. 5mm S-PCD(010) EC-PCD(010) Corner R Fig. 11 Comparison of flank wear in interrupted cutting of Al alloy (L=3~15km).

[20] [40] [60] [80] Principal force N R 0. 2mm R 0. 5mm Corner R S-PCD(010) EC-PCD(010) (a) Principal force.

[5] [10] [15] [20] Thrust force N R 0. 2mm R 0. 5mm S-PCD(010) EC-PCD(010) Corner R (b) Thrust force Fig. 10 Comparison of cutting force in interrupted cutting of Al alloy (V=800m/min, f=0. 3mm/rev, a=0. 3mm, L=15km).

[5] [10] [15] [20] Flank wear width µm R 0. 2mm R 0. 5mm S-PCD(010) EC-PCD(010) Corner R Fig. 11 Comparison of flank wear in interrupted cutting of Al alloy (L=3~15km).