Scholarlink

<p>Alumina (Al₂O₃) tubes are widely used in electronics, aerospace, and precision instrumentation due to excellent mechanical strength, chemical resistance, and thermal stability. However, the inner surface polishing of alumina tubes is hampered by high hardness, machining space limitation, and brittleness. A chemical-assisted magnetorheological shear thickening polishing (CMSTP) method is proposed for polishing the alumina tubes using a designed CMSTP slurry. The components of the slurry formed flexible abrasive clusters by the magnetic field. A material removal rate model for CMSTP was established to elucidate the polishing mechanism and optimize process parameters. The CMSTP experiments were conducted on a self-developed polishing experimental device. The surface roughness value was reduced to 35&#xa0;nm from 465&#xa0;nm with the optimal conditions of 900 r/min workpiece rotational velocity, 50&#xa0;μm magnetic particle size, 1&#xa0;mm working gap, and 0.3 wt% surfactant concentration. A smooth and scratch-free surface was obtained, demonstrating that CMSTP provides a new method for polishing the inner surface of alumina tubes.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Experimental investigations on chemical-assisted magnetorheological shear thickening polishing for alumina tubes

  • 期刊论文

  • 发表日期：

    2025年11月19日

查看全文
  • Zihao Yang,
  • Zenghua Fan,
  • Xiang Zhang,
  • Jun Gao,
  • Yebing Tian

摘要

Alumina (Al₂O₃) tubes are widely used in electronics, aerospace, and precision instrumentation due to excellent mechanical strength, chemical resistance, and thermal stability. However, the inner surface polishing of alumina tubes is hampered by high hardness, machining space limitation, and brittleness. A chemical-assisted magnetorheological shear thickening polishing (CMSTP) method is proposed for polishing the alumina tubes using a designed CMSTP slurry. The components of the slurry formed flexible abrasive clusters by the magnetic field. A material removal rate model for CMSTP was established to elucidate the polishing mechanism and optimize process parameters. The CMSTP experiments were conducted on a self-developed polishing experimental device. The surface roughness value was reduced to 35 nm from 465 nm with the optimal conditions of 900 r/min workpiece rotational velocity, 50 μm magnetic particle size, 1 mm working gap, and 0.3 wt% surfactant concentration. A smooth and scratch-free surface was obtained, demonstrating that CMSTP provides a new method for polishing the inner surface of alumina tubes.