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TiBw网状增强钛基复合材料旋转超声磨削的磨削力模型

董国军 王磊 高胜东

董国军, 王磊, 高胜东. TiBw网状增强钛基复合材料旋转超声磨削的磨削力模型[J]. 金刚石与磨料磨具工程, 2022, 42(1): 97-103. doi: 10.13394/j.cnki.jgszz.2021.0092
引用本文: 董国军, 王磊, 高胜东. TiBw网状增强钛基复合材料旋转超声磨削的磨削力模型[J]. 金刚石与磨料磨具工程, 2022, 42(1): 97-103. doi: 10.13394/j.cnki.jgszz.2021.0092
DONG Guojun, WANG Lei, GAO Shengdong. Grinding force model for rotary ultrasonic grinding of TiBw mesh reinforced titanium matrix composites[J]. Diamond &Abrasives Engineering, 2022, 42(1): 97-103. doi: 10.13394/j.cnki.jgszz.2021.0092
Citation: DONG Guojun, WANG Lei, GAO Shengdong. Grinding force model for rotary ultrasonic grinding of TiBw mesh reinforced titanium matrix composites[J]. Diamond &Abrasives Engineering, 2022, 42(1): 97-103. doi: 10.13394/j.cnki.jgszz.2021.0092

TiBw网状增强钛基复合材料旋转超声磨削的磨削力模型

doi: 10.13394/j.cnki.jgszz.2021.0092
基金项目: 国家自然科学基金(52075127,51775144)。
详细信息
    作者简介:

    董国军,男,1974年生,副教授。主要研究方向:精密加工、超声辅助加工、增材制造。E-mail: dongguojun@hit.edu.cn

    通讯作者:

    高胜东,男,1973年生,副教授。主要研究方向:精密加工、超声辅助加工、增材制造。E-mail: sdgao@hit.edu.cn

  • 中图分类号: TG58

Grinding force model for rotary ultrasonic grinding of TiBw mesh reinforced titanium matrix composites

  • 摘要: 针对TiBw网状增强钛基复合材料加工时表面质量差、加工过程不平稳等问题,开展其旋转超声磨削的法向磨削力研究。分析旋转超声磨削中的磨粒运动规律,建立旋转超声磨削TiBw网状增强钛基复合材料的法向磨削力模型,并通过单因素磨削试验对模型进行验证。结果表明:在一定的主轴转速、进给速度、磨削深度及固定磨削宽度条件下,法向磨削力随主轴转速的增加而减小,随进给速度、磨削深度的增加而增大,且其磨削试验值与模型计算值的相对误差绝对值均在6%以内。模型很好地预测了TiBw网状增强钛基复合材料磨削时的法向磨削力,验证了预测模型的有效性。

     

  • 图  1  TiBw网状增强钛基复合材料的抛光表面

    Figure  1.  Polished surface of TiBw mesh reinforced titanium matrix composites

    图  2  旋转超声加工的材料去除示意图

    Figure  2.  Schematic diagram of material removal in rotary ultrasonic machining

    图  3  磨粒的简化运动轨迹

    Figure  3.  Simplified motion trajectory of grain

    图  4  磨削力试验装置

    Figure  4.  Grinding force experimental device

    图  5  法向力计算值与试验值比较

    Figure  5.  Comparison between calculated values and experimental value of normal force

    表  1  正交试验参数

    Table  1.   Orthogonal experimental parameters

    水平因素
    主轴转速
    n / (r·min−1)
    进给速度
    vf / (mm·min−1)
    磨削深度
    ap / μm
    磨削宽度
    b / mm
    16 0001086
    28 0001512
    310 0002016
    412 0002520
    下载: 导出CSV

    表  2  单因素试验参数

    Table  2.   Single factor experiment parameters

    因素取值
    主轴转速 n / (r·min−1)6 000,7 000,8 000,9 000,
    10 000,11 000,12 000
    进给速度 vf / (mm·min−1)8,10,12,14,16,18,20
    磨削深度 ap / μm8,10,12,14,16,18,20
    磨削宽度 b / mm6
    超声振幅 A / μm2
    超声频率 f / Hz30 000
    下载: 导出CSV
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出版历程
  • 录用日期:  2021-11-26
  • 收稿日期:  2021-06-01
  • 修回日期:  2021-09-27

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