IJAT Vol.16 No.1 pp. 43-51
doi: 10.20965/ijat.2022.p0043

Technical Paper:

Effect of Types of Grinding Fluid on Grinding Characteristics of CMSX4

Tatsuki Ikari*,†, Takayuki Kitajima*, and Akinori Yui**

*Mechanical Systems Engineering, National Defense Academy of Japan
1-10-20 Hashirimuzu, Yokosuka, Kanagawa 239-8686, Japan

Corresponding author

**Department of Mechanical Engineering, Kanagawa University, Yokohama, Japan

June 7, 2021
September 14, 2021
January 5, 2022
grinding, nickel superalloy, grinding fluid

Nickel-based heat-resistant alloys are widely used for fabricating the turbine blades in gas turbine engines. An increase in the number of such engines operated by air carriers will increase the demand for high-efficiency machining of nickel-based heat-resistant alloys. However, the high-efficiency grinding of nickel-based heat-resistant alloys is challenging because of their low thermal conductivity and thermal diffusivity, high chemical activity, large work-hardening properties, and high-temperature strength. In this work, the authors propose a high-efficiency grinding technique that uses speed-stroke grinding of nickel-based heat-resistant alloys, and aim to clarify the optimum grinding conditions for the proposed grinding method. The workpiece material is CMSX4 used for the turbine blades. A Cubitron + WA grinding wheel and WA grinding wheel mounted on a linear motor-driven surface grind machines are used for grinding, and the grinding force, surface roughness, and grinding ratio are investigated with the removal rate maintained constant. Two types of grinding fluid are prepared: solution and soluble. From the experiments, it is found that wet grinding features a lower grinding force, smaller surface roughness, and higher grinding ratio when compared to dry-cut grinding. The improvement in the grinding ratio at high table speeds is significant, and it is found to be greater for the soluble-type fluid than for the solution-type fluid.

Cite this article as:
T. Ikari, T. Kitajima, and A. Yui, “Effect of Types of Grinding Fluid on Grinding Characteristics of CMSX4,” Int. J. Automation Technol., Vol.16 No.1, pp. 43-51, 2022.
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