Optics and Precision Engineering, Volume. 24, Issue 4, 855(2016)

Gas-liquid-solid abrasive flow polishing and its process parameter optimization

JI Shi-Ming*... HUANG Xi-Huan, TAN Da-Peng and TAN Yun-Feng |Show fewer author(s)
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    A gas-liquid-solid three-phase abrasive flow finishing method was proposed to improve the efficiency of fluid-based finishing for large-scale workpieces. By introducing micro-nano bubbles into a restrain flow field, the method utilized the energy released by the bubble collapsing to accelerate the motions of abrasive particles and to improve the finishing efficiency. During the finishing process, the fluid viscosity might decline owing to the centrifugal pump heat, and it could influence the amplitudes and profiles of turbulent kinetic energy and dynamic pressure in the near-wall region. Furthermore, the turbulent kinetic energy and dynamic pressure of near-wall region have a major impact on the uniformity of the surface texture and the removal efficiency. On the basis of the results mentioned above, a method to change the inlet velocity to compensate the temperature rising brought by the turbulent kinetic energy and dynamic pressure changes was proposed, and the optimal inlet velocity of finishing fluid temperature from 20℃ to 60℃ between the corresponding nine equal points was obtained. Experimental results show that the gas-liquid-solid three-phase abrasive flow finishing method improves the efficiency respect to traditional methods without the bubble processing, and the inlet velocity compensation improves the quality of workpiece surfaces significantly.

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    JI Shi-Ming, HUANG Xi-Huan, TAN Da-Peng, TAN Yun-Feng. Gas-liquid-solid abrasive flow polishing and its process parameter optimization[J]. Optics and Precision Engineering, 2016, 24(4): 855

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    Paper Information

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    Received: Sep. 19, 2015

    Accepted: --

    Published Online: Jun. 6, 2016

    The Author Email: Shi-Ming JI (jishiming@zjut.edu.cn)

    DOI:10.3788/ope.20162404.0855

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