Evaluation of Heat Transfer Performance of Nanofluid Heat Pipe Grinding Wheel Forming and Grinding Titanium Alloy

doi:10.3901/JME.2024.15.407

Abstract

Abstract: The primary issue hindering the machining of difficult-to-process materials is grinding burn. In this study，axial rotating heat pipe (ARHP) technology is combined with nanofluid technology to enhance the heat transfer effect during grinding. computational fluid dynamics (CFD) numerical simulation method is employed to investigate the heat transfer performance of nanofluid axial rotating heat pipe grinding wheel (ARHP-GW). The heat transfer performance of grinding wheels in grinding titanium alloy is evaluated from three perspectives: Grinding heat flux, the rotational speed and types of grinding wheels (conventional grinding wheel, ARHP-GW with deionized water and diamond nanofluid as the working fluid, respectively). The results indicate that the temperature of the grinding contact zone significantly decreases as using ARHP-GWs, showing their superior heat transfer performance compared to the conventional one. The heat transfer performance of ARHP-GWs filled with diamond nanofluid is higher than that of using deionized water. This characteristic is maintained even under the high heat flux of 1× 10⁸ W/m². Finally, the TC4 titanium alloy forming grinding test is carried out to verify the heat transfer effect of ARHP-GW diamond nanofluid at 1 800r/min.

Key words: form grinding, difficult-to-process materials, axial rotating heat pipe, enhanced heat transfer, numerical simulation

CLC Number:

TK172

CHEN Jiajia, LIU Songyan, YANG Yong, YUAN Dongdong, ZHANG Liyong, FU Yucan, QIAN Ning. Evaluation of Heat Transfer Performance of Nanofluid Heat Pipe Grinding Wheel Forming and Grinding Titanium Alloy[J]. Journal of Mechanical Engineering, 2024, 60(15): 407-419.

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