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<p>Magnetorheological polishing is a critical method for ultra-precision machining of fused quartz glass. The selection of process parameters significantly impacts machining efficiency. To fully study the effect of magnetorheological polishing on the processing efficiency of fused quartz glass, a mathematical prediction model must be established. Therefore, a material removal rate model based on the extended Preston equation is proposed to predict material removal during magnetorheological polishing. The model incorporates factors such as workpiece rotation speed, polishing disc rotation speed, polishing gap, and correction factor. Experimental results show that the theoretical calculations align well with experimental results. The maximum average error is 8.97%, which verifies the accuracy of the established model. Additionally, the material removal rate decreases with increasing polishing gap. It increases with the increase in the rotation speed of the workpiece and the polishing disc. When the polishing gap is 2&#xa0;mm, the workpiece rotation speed is 350r/min, and the polishing disc rotation speed is 400r/min, the maximum surface roughness is reduced from 148&#xa0;nm to nearly 4&#xa0;nm. This study enables precise prediction of the deterministic removal amount during magnetorheological polishing of fused quartz glass. It provides a theoretical basis for the selection of polishing process of fused quartz glass.</p>

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Modelling and process analysis of material removal rate in magnetorheological polishing of fused quartz glass

  • 期刊论文

  • 发表日期：

    2025年8月2日

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  • Mingming Lu,
  • Yakun Yang,
  • Yuyang Liu,
  • Limin Zhang

摘要

Magnetorheological polishing is a critical method for ultra-precision machining of fused quartz glass. The selection of process parameters significantly impacts machining efficiency. To fully study the effect of magnetorheological polishing on the processing efficiency of fused quartz glass, a mathematical prediction model must be established. Therefore, a material removal rate model based on the extended Preston equation is proposed to predict material removal during magnetorheological polishing. The model incorporates factors such as workpiece rotation speed, polishing disc rotation speed, polishing gap, and correction factor. Experimental results show that the theoretical calculations align well with experimental results. The maximum average error is 8.97%, which verifies the accuracy of the established model. Additionally, the material removal rate decreases with increasing polishing gap. It increases with the increase in the rotation speed of the workpiece and the polishing disc. When the polishing gap is 2 mm, the workpiece rotation speed is 350r/min, and the polishing disc rotation speed is 400r/min, the maximum surface roughness is reduced from 148 nm to nearly 4 nm. This study enables precise prediction of the deterministic removal amount during magnetorheological polishing of fused quartz glass. It provides a theoretical basis for the selection of polishing process of fused quartz glass.