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管件内壁磁粒研磨时的磨粒动力学行为仿真及分析

吴传宗 马小刚 张亮 杨诗瑞 解志文 陈燕 丁云龙

吴传宗, 马小刚, 张亮, 杨诗瑞, 解志文, 陈燕, 丁云龙. 管件内壁磁粒研磨时的磨粒动力学行为仿真及分析[J]. 金刚石与磨料磨具工程, 2024, 44(2): 244-251. doi: 10.13394/j.cnki.jgszz.2023.0084
引用本文: 吴传宗, 马小刚, 张亮, 杨诗瑞, 解志文, 陈燕, 丁云龙. 管件内壁磁粒研磨时的磨粒动力学行为仿真及分析[J]. 金刚石与磨料磨具工程, 2024, 44(2): 244-251. doi: 10.13394/j.cnki.jgszz.2023.0084
WU Chuanzong, MA Xiaogang, ZHANG Liang, YANG Shirui, XIE Zhiwen, CHEN Yan, DING Yunlong. Simulation and analysis of abrasive particles dynamics behavior during magnetic particles grinding on inner wall of pipe fitting[J]. Diamond & Abrasives Engineering, 2024, 44(2): 244-251. doi: 10.13394/j.cnki.jgszz.2023.0084
Citation: WU Chuanzong, MA Xiaogang, ZHANG Liang, YANG Shirui, XIE Zhiwen, CHEN Yan, DING Yunlong. Simulation and analysis of abrasive particles dynamics behavior during magnetic particles grinding on inner wall of pipe fitting[J]. Diamond & Abrasives Engineering, 2024, 44(2): 244-251. doi: 10.13394/j.cnki.jgszz.2023.0084

管件内壁磁粒研磨时的磨粒动力学行为仿真及分析

doi: 10.13394/j.cnki.jgszz.2023.0084
基金项目: 国家自然科学基金(51775258); 辽宁省科技厅重点研发计划(2023JH2/101300226)。
详细信息
    通讯作者:

    马小刚,男,1988年生,博士、硕士生导师,主要研究方向:复杂工件表面精密加工与特种加工。E-mail:mxg_fy@163.com

  • 中图分类号: TG58; TG73; TQ176

Simulation and analysis of abrasive particles dynamics behavior during magnetic particles grinding on inner wall of pipe fitting

  • 摘要: 为探究磁性磨粒在管件研磨过程中的动力学行为,对其研磨过程进行离散元仿真,并分析其运动轨迹和磨削力随管件转速和加工间隙的变化;通过单磨粒球运动及磁粒研磨试验,验证磁场力模型的准确性与粒子运动学行为可视化的可行性。结果表明:随管件转速提高,磁性磨粒在离心力作用下向加工区域外运动,且加工间隙越大越容易被“甩飞”;在达到临界转速之前,随管件转速提高,磨削力减小,材料去除效率提升。当管件转速由400 r/min提高至临界转速,加工间隙为2 mm和4 mm时,磨削力分别下降5.4 μN和2.3 μN,材料去除效率明显提升;当加工间隙为6 mm时,磨削力变化较小,且当转速大于临界转速650 r/min时,材料去除效率下降。同时,材料去除量在达到临界转速之前随管件转速提高而增大,但加工间隙的增大会使临界转速降低;且材料去除量的变化趋势与仿真结果一致,验证了仿真分析的可靠性。

     

  • 图  1  加工模型示意图

    Figure  1.  Schematic diagram of processing model

    图  2  不同磁场下磁性磨粒的磁场力

    Figure  2.  Magnetic field force of magnetic abrasive particles under different magnetic fields

    图  3  导入磁场数据

    Figure  3.  Import magnetic field data

    图  4  磁性磨粒球实物与模型

    Figure  4.  Magnetic abrasive ball shape and model

    图  5  不同时刻下的磨粒球运动状态

    Figure  5.  Motion state of abrasive balls at different times

    图  6  不同参数下磨粒系统的速度场矢量图

    Figure  6.  Velocity field vector diagram of abrasive particle system with different parameters

    图  7  不同加工间隙下磨削力与材料累计去除占比随管件转速的变化

    Figure  7.  Variation of grinding forces and cumulative material removal ratios with pipe rotation speeds under different machining clearances

    图  8  磁粒研磨加工装置

    Figure  8.  Magnetic particle grinding processing device

    图  9  材料去除量

    Figure  9.  Material removal amount

    图  10  管件的微观形貌与表面粗糙度

    Figure  10.  Microscopic morphology and surface roughness of pipe fittings

    表  1  材料参数

    Table  1.   Material parameters

    类型密度 ρ /(kg·m−3弹性模量 E / Pa泊松比 ν
    管件4 5104.48 × 10100.38
    磨粒5 5486.09 × 1090.29
    下载: 导出CSV

    表  2  接触参数

    Table  2.   Contact parameter

    类型碰撞恢复系数 e静摩擦系数 μs滚动摩擦系数 μr
    磨粒与磨粒0.200.500.01
    磨粒与管件0.150.500.01
    下载: 导出CSV
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出版历程
  • 收稿日期:  2023-04-07
  • 修回日期:  2023-08-08
  • 网络出版日期:  2024-05-08
  • 刊出日期:  2024-04-01

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