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<p>To investigate the grinding mechanism and controlling factors of grinding force during deformed casing milling, this study focuses on abrasive particles and casing materials. A single-grain grinding force model was developed using metal cutting theory. High-temperature tensile tests determined Johnson-Cook constitutive parameters for the casing. A finite element model simulated single-abrasive cutting, analyzing effects of grain geometry and process parameters. Results show that ding-shaped abrasive grains exhibit superior grinding performance, with optimal efficiency at 0° rake angle and 0.2 mm depth. The innovation is integrating the high-temperature Johnson–Cook model into single-grain simulations to assess influences of shape, rake angle, and depth on forces. Comparative analysis confirms that combining 0° rake angle with 0.2 mm depth yields optimal outcomes. These findings provide theoretical and numerical guidance for designing high-efficiency grinding tools under high-temperature deep-well conditions.</p>

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Characteristics analysis of main control factors of grinding force and grinding mechanism research of single abrasive grain grinding and milling tool

  • 期刊论文

  • 发表日期：

    2026年7月11日

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  • Yuwen Wang,
  • Chaoyang Yu,
  • Ruyi Gou,
  • Liangliang Ding,
  • Qiang Zhang,
  • Xin Ma

摘要

To investigate the grinding mechanism and controlling factors of grinding force during deformed casing milling, this study focuses on abrasive particles and casing materials. A single-grain grinding force model was developed using metal cutting theory. High-temperature tensile tests determined Johnson-Cook constitutive parameters for the casing. A finite element model simulated single-abrasive cutting, analyzing effects of grain geometry and process parameters. Results show that ding-shaped abrasive grains exhibit superior grinding performance, with optimal efficiency at 0° rake angle and 0.2 mm depth. The innovation is integrating the high-temperature Johnson–Cook model into single-grain simulations to assess influences of shape, rake angle, and depth on forces. Comparative analysis confirms that combining 0° rake angle with 0.2 mm depth yields optimal outcomes. These findings provide theoretical and numerical guidance for designing high-efficiency grinding tools under high-temperature deep-well conditions.