Optics and Precision Engineering, Volume. 30, Issue 18, 2219(2022)

Design of ultrasonic magnetorheological finishing excitation device for medical bone screw

Axiang JI1...2, Hongyun WANG2,*, Cheng BI2,* and Aiqun XU1 |Show fewer author(s)
Author Affiliations
  • 1College of Mechanical and Energy Engineering, Zhejiang University of Science and Technology, Hangzhou30023, China
  • 2School of Aeronautical Engineering, Taizhou University, Taizhou318000, China
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    Figures & Tables(17)
    Schematic diagram of the principle drum type ultrasonic magnetorheological polishing
    3D model of drum ultrasonic magnetorheological polishing device
    3D model of electromagnetic excitation device
    Magnetic circuit of three magnetic pole excitation device
    2D simulation simplified model of electromagnet
    B-H curve of the material
    Post-processing results simulation
    Cloud image of magnetic induction intensity distribution at different pole widths
    Relationship between magnetic induction intensity and path position at different pole widths
    Cloud map of magnetic induction intensity under different current
    Relationship between magnetic induction intensity and path position under different excitation current
    Drum type ultrasonic magnetorheological compound polishing device
    Comparison curve between simulation value and test value of magnetic induction intensity in the same path under different current
    Relationship between surface roughness and its rate of change with current
    Surface morphology before and after polishing
    • Table 1. Related parameters of copper enameled wire

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      Table 1. Related parameters of copper enameled wire

      线径/mm电阻率/(Ω·km-1安全电流/A最大电流/A绕制匝数/n磁动势/A
      0.8530.42.32.52 3235 807
      1.0420.23.33.81 5605 928
      1.2516.455.61 0806 048
      1.4510.66.57.47985 905
      1.638.458.29.46315 931
      1.826.6910.411.85065 970
    • Table 2. Basic settings of simulation

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      Table 2. Basic settings of simulation

      项 目设 置
      求解器类型Maxwell2D静磁场求解器
      建立几何模型电磁铁二维仿真简化模型(如图5所示)
      材料的定义空气域Air;毛刷steel1080;铁芯、铁棒、抛光主轴为电工纯铁DT4C,B-H曲线如图6(a)所示;磁流变液(羰基铁粉35wt%)B-H曲线如图6(b)所示
      加载激励源和边界条件安匝数5 400,Balloon边界
      网格划分与求解参数设置自适应网格划分;最大收敛步数10,收敛百分比误差1%,网格增量30%
      后处理二维截面磁力线分布图,磁感应强度分布云图,路径上磁感应强度大小(路径:如图5所示)
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    Axiang JI, Hongyun WANG, Cheng BI, Aiqun XU. Design of ultrasonic magnetorheological finishing excitation device for medical bone screw[J]. Optics and Precision Engineering, 2022, 30(18): 2219

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    Paper Information

    Category: Micro/Nano Technology and Fine Mechanics

    Received: May. 11, 2022

    Accepted: --

    Published Online: Oct. 27, 2022

    The Author Email: WANG Hongyun (emmawhy4@163.com), BI Cheng (bcbicheng@163.com)

    DOI:10.37188/OPE.20223018.2219

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