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<p>To achieve high-efficiency and high-quality cutting edge preparation for cemented carbide inserts, the shear-thickening polishing (STP) method was employed. The Taguchi method was utilized to analyze the effects of polishing angle, polishing speed, and polishing gap on both edge radius and form factor <i>K</i>. Analysis of variance (ANOVA) was conducted to determine the significance of each parameter and to identify the optimal conditions: a 55° polishing angle, 80&#xa0;rpm polishing speed, and a 4&#xa0;mm polishing gap. Under these optimized parameters, the edge radius improved from 5.00 ± 1&#xa0;μm to 20.33 ± 1.5&#xa0;μm, and the form factor <i>K</i> increased to 2.05 ± 0.2. As a result, edge defects were eliminated, and a rounded-edge profile was achieved. The uniformity of the edge profile was exceptional, evidenced by low standard deviations (<i>SD</i><sub>R</sub> = 1.25&#xa0;μm; <i>SD</i><sub>K</sub> = 0.19) and coefficients of variation (<i>CV</i><sub>R</sub> = 6.15%; <i>CV</i><sub>K</sub> = 9.27%). By controlling the preparation time, a variety of inserts with distinct edge shapes can be produced, all while maintaining consistent quality. The findings suggest that the STP method demonstrates exceptional efficiency and effectiveness in preparing the cutting edges of right-angle inserts, offering a novel and non-destructive approach for the controlled preparation of cemented carbide insert edges.</p>

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Experimental study on the cutting edge preparation of cemented carbide inserts by shear thickening polishing

  • 期刊论文

  • 发表日期：

    2025年8月19日

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  • Mingfeng Ke,
  • Yanfei Dai,
  • Jiahuan Wang,
  • Honglin Li,
  • Xingsheng Wu,
  • Binghai Lyu

摘要

To achieve high-efficiency and high-quality cutting edge preparation for cemented carbide inserts, the shear-thickening polishing (STP) method was employed. The Taguchi method was utilized to analyze the effects of polishing angle, polishing speed, and polishing gap on both edge radius and form factor K. Analysis of variance (ANOVA) was conducted to determine the significance of each parameter and to identify the optimal conditions: a 55° polishing angle, 80 rpm polishing speed, and a 4 mm polishing gap. Under these optimized parameters, the edge radius improved from 5.00 ± 1 μm to 20.33 ± 1.5 μm, and the form factor K increased to 2.05 ± 0.2. As a result, edge defects were eliminated, and a rounded-edge profile was achieved. The uniformity of the edge profile was exceptional, evidenced by low standard deviations (SDR = 1.25 μm; SDK = 0.19) and coefficients of variation (CVR = 6.15%; CVK = 9.27%). By controlling the preparation time, a variety of inserts with distinct edge shapes can be produced, all while maintaining consistent quality. The findings suggest that the STP method demonstrates exceptional efficiency and effectiveness in preparing the cutting edges of right-angle inserts, offering a novel and non-destructive approach for the controlled preparation of cemented carbide insert edges.