IJAT Vol.18 No.2 pp. 225-231
doi: 10.20965/ijat.2024.p0225

Research Paper:

Influence of Abrasive Grain Protrusion on High-Quality Machining of Cemented Carbide Using PCD Ball End Mills

Kazutoshi Katahira*,† and Shinya Morita**

2-1 Hirosawa, Wako, Saitama 351-0198, Japan

Corresponding author

**Tokyo Denki University
Tokyo, Japan

July 24, 2023
September 4, 2023
March 5, 2024
polycrystalline diamond, ball end mill, cemented carbide

In this study, cemented carbide was machined to a high quality using polycrystalline diamond (PCD) ball end mills characterized by various surface textures. The effect of the surface texture of the tools on the machining characteristics was studied using two types of PCD tools featuring abrasive diamond grains at various protrusion heights. In addition, a single crystal diamond tool with the same shape as that of the PCD tool was fabricated, and the experiment was repeated to study the differences in machining characteristics. The polished PCD tool yielded a high-quality machined surface with an average surface roughness of 1 nm. The polished PCD tool yielded superior sample surface roughness compared to the PCD tool for feed rates of 10–500 mm/min. The use of a polished PCD tool enables the efficient elimination of material through plastic flow, leading to the attainment of a high-quality machined surface while preventing the adhesion of materials on the tool surface. A single crystal diamond tool can also be used for machining cemented carbide within a feed rate range of 10–200 mm/min; however, its performance is inferior to that of a polished PCD tool. Experiments confirmed that the polished PCD tool was the most effective among the tested tools for the precision machining of cemented carbide.

Cite this article as:
K. Katahira and S. Morita, “Influence of Abrasive Grain Protrusion on High-Quality Machining of Cemented Carbide Using PCD Ball End Mills,” Int. J. Automation Technol., Vol.18 No.2, pp. 225-231, 2024.
Data files:
  1. [1] D. Dornfeld, S. Min, and Y. Takeuchi, “Recent advances in mechanical micromachining,” CIRP Ann., Vol.55, No.2, pp. 745-768, 2006.
  2. [2] F. Klocke and R. Zunke, “Removal mechanisms in polishing of silicon based advanced ceramics,” CIRP Ann., Vol.58, No.1, pp. 491-494, 2009.
  3. [3] A. J. Shih, B. Denkena, T. Grove, D. Curry, H. Hocheng, H.-Y. Tsai, H. Ohmori, K. Katahira, and Z. J. Pei, “Fixed abrasive machining of non-metallic materials,” CIRP Ann., Vol.67, No.2, pp. 767-790, 2018.
  4. [4] P. W. Butler-Smith, D. A. Axinte, M. Daine, A. R. Kennedy, L. T. Harper, J. F. Bucourt, and R. Ragueneau, “A study of an improved cutting mechanism of composite materials using novel design of diamond micro-core drills,” Int. J. Mach. Tools Manuf., Vol.88, pp. 175-183, 2015.
  5. [5] P. W. Butler-Smith, D. A. Axinte, and M. Daine, “Solid diamond micro-grinding tools: From innovative design and fabrication to preliminary performance evaluation in Ti-6Al-4V,” Int. J. Mach. Tools Manuf., Vol.59, pp. 55-64, 2012.
  6. [6] J. Cheng and Y. D. Gong, “Experimental study on ductile-regime micro-grinding character of soda-lime glass with diamond tool,” Int. J. Adv. Manuf. Technol., Vol.69, No.1, pp. 147-160, 2013.
  7. [7] D. Axinte, P. Butler-Smith, C. Akgun, and K. Kolluru, “On the influence of single grit micro-geometry on grinding behavior of ductile and brittle materials,” Int. J. Mach. Tools Manuf., Vol.74, pp. 12-18, 2013.
  8. [8] H. Suzuki, T. Moriwaki, Y. Yamamoto, and Y. Goto, “Precision cutting of aspherical ceramic molds with micro PCD milling tool,” CIRP Ann., Vol.56, No.1, pp. 131-134, 2007.
  9. [9] J. Yan, Z. Zhang, and T. Kuriyagawa, “Tool wear control in diamond turning of high-strength mold materials by means of tool swinging,” CIRP Ann., Vol.59, No.1, pp. 109-112, 2010.
  10. [10] K. Cheng and D. Huo (Eds.), “Micro-Cutting: Fundamentals and Applications,” John Wiley & Sons, Inc., 2013.
  11. [11] X. Cheng, Z. G. Wang, K. Nakamoto, and K. Yamazaki, “Design and development of micro polycrystalline diamond ball end mill for micro/nano freeform machining of hard and brittle materials,” J. Micromech. Microeng., Vol.19, No.11, Article No.115022, 2009.
  12. [12] C. J. Morgan, R. R. Vallance, and E. R. Marsh, “Micro machining glass with polycrystalline diamond tools shaped by micro electro discharge machining,” J. Micromech. Microeng., Vol.14, No.12, pp. 1687-1692, 2004.
  13. [13] K. Nakamoto, K. Katahira, H. Ohmori, K. Yamazaki, and T. Aoyama, “A study on the quality of micro-machined surfaces on tungsten carbide generated by PCD micro end-milling,” CIRP Ann., Vol.61, No.1, pp. 567-570, 2012.
  14. [14] K. Katahira, K. Nakamoto, P. Fonda, H. Ohmori, and K. Yamazaki, “A novel technique for reconditioning polycrystalline diamond tool surfaces applied for silicon micromachining,” CIRP Ann., Vol.60, No.1, pp. 591-594, 2011.
  15. [15] K. Katahira, Y. Ogawa, S. Morita, and K. Yamazaki, “Experimental investigation for optimizing the fabrication of a sapphire capillary using femtosecond laser machining and diamond tool micromilling,” CIRP Ann., Vol.69, No.1, pp. 229-232, 2020.

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Last updated on Apr. 05, 2024