Effect of Lubricants on Precision Planing of Tungsten Carbide Using Mono-Crystalline Diamond Tool

Abstract:

Rubbing tests between a diamond stick and a tungsten carbide plate and planing experiments of cobalt-free tungsten carbide using a mono-crystalline diamond tool are conducted, and the effect of lubricants on tool wear is investigated. Five kinds of lubricants such as: sulfur-base extreme-pressure additive; dimethyl-silicone; oleic acid; zinc dialkyldithiophosphate (ZnDDP); and chemical solution type coolant (FGC950) are chosen for the lubricants. Through the rubbing experiments, diamond stick wear is the greatest when using dimethyl-silicone, followed by FGC950 and it is the least using ZnDDP. On the other hand, tool edge chipping is the greatest when using FGC950, followed by sulfur-base extreme-pressure additive and it is the least using ZnDDP. Through the planing experiments, tool chipping is dominant in diamond-tool wastage in comparison with abrasive wear. Tool life is the longest when using ZnDDP and obtained surface roughness is 0.022 mm Ra after 177 m planing.

• Periodical: Advanced Materials Research (Volume 325)
• Pages: 159-164
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.325.159
• Online since: August 2011
• Authors: Akinori Yui, Hiroshi Matsuoka, Shigeki Okuyama, Takayuki Kitajima, Go Okahata
• Keywords: Chipping, Friction Coefficient (FC), Lubricant, Mono-Crystalline Diamond, Planing, Tool Wear, Tungsten Carbide

References

[1] Yui, H. Matsuoka, T. Tanaka, S. Okuyama and T. Kitajima: Cutting of tungsten carbide using a mono-crystalline diamond tool –1st report: Properties of friction between diamond and tungsten carbide–, Journal of the Japan society for Abrasive Technology, 54, 9 (2010).

DOI: 10.4028/www.scientific.net/amr.325.159

[2] E. Shamoto, K. Ienaga and T. Moriwaki: Ductile mode machining of sintered carbide by applying ultrasonic elliptical vibration cutting, Journal of the Japan Society for Abrasive Technology, 47, 2 (2003) p.83 (in Japanese).

[3] S.J. Heo, T. Miyamoto, S. Hanasaki, J. Fujiwara: Study on Cutting of Cemented Carbides, Journal of the Japan Society for Precision Engineering, 69, 12 (2003) 1724 (in Japanese). a.

DOI: 10.2493/jjspe.69.1724

[4] J. Tamaki, A. Kubo, T. Sugino: Wear of CVD diamond tool in single-point cutting of tungsten carbide, Proc. of ABTEC2007 (2007) p.61 (in Japanese).

[5] Synthetic Single Crystal Diamond Sumicrystal, Sumitomo electric general catalog, (2002) p.3.

[6] Yui, H. Matsuoka, S. Okuyama, T. Kitajima and G. Okahata: Cutting of cobalt-free tungsten carbide using a mono-crystalline diamond tool –2nd report: Effect of atmosphere on cutting temperature and tool wear– Journal of the Japan Society for Abrasive Technology, 54, 10 (2010).

DOI: 10.4028/www.scientific.net/kem.389-390.132

[7] Tribology hand book，Japan Society of Tribologists，Yokendo, (2001) p.49.

[8] S. Shimada, T. Imamura, M. Higuchi, H. Tanaka and N. Ikawa: Suppression of tool wear in diamond turning of capper under reduced oxygen atmosphere, Annuls of the CIRP, 49, 1 (2000) p.221.

DOI: 10.1016/s0007-8506(07)62888-1