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考虑磨削热变形的表面微观形貌建模与仿真

胡宁 陈海锋

胡宁,陈海锋. 考虑磨削热变形的表面微观形貌建模与仿真[J]. 机械科学与技术,2023,42(5):772-778 doi: 10.13433/j.cnki.1003-8728.20220019
引用本文: 胡宁,陈海锋. 考虑磨削热变形的表面微观形貌建模与仿真[J]. 机械科学与技术,2023,42(5):772-778 doi: 10.13433/j.cnki.1003-8728.20220019
HU Ning, CHEN Haifeng. Modeling and Simulation of Grinding Surface Microtopography Considering Grinding Thermal Deformation[J]. Mechanical Science and Technology for Aerospace Engineering, 2023, 42(5): 772-778. doi: 10.13433/j.cnki.1003-8728.20220019
Citation: HU Ning, CHEN Haifeng. Modeling and Simulation of Grinding Surface Microtopography Considering Grinding Thermal Deformation[J]. Mechanical Science and Technology for Aerospace Engineering, 2023, 42(5): 772-778. doi: 10.13433/j.cnki.1003-8728.20220019

考虑磨削热变形的表面微观形貌建模与仿真

doi: 10.13433/j.cnki.1003-8728.20220019
基金项目: 国家自然科学基金项目(51605160)与湖南省自然科学基金项目(2020JJ5169)
详细信息
    作者简介:

    胡宁(1996−),硕士研究生,研究方向为磨削加工表面微观形貌的仿真与研究,872205940@qq.com

    通讯作者:

    陈海锋,副教授,硕士生导师,chenhf1986@126.com

  • 中图分类号: TG580

Modeling and Simulation of Grinding Surface Microtopography Considering Grinding Thermal Deformation

  • 摘要: 针对磨削热引起的工件热胀冷缩效应对磨削后的工件表面微观形貌的影响,提出一种考虑磨削热变形影响的磨削表面微观形貌建模方法。假设磨粒为正四面体建立砂轮形貌;根据磨削运动学原理,建立考虑磨削热变形效应的单颗磨粒三维切削轨迹,并结合砂轮形貌与单颗磨粒轨迹,建立磨削表面微观形貌预测模型,通过磨削实验对仿真结果进行验证,结果为该模型最小误差仅0.135%,最大误差为13.31%,验证了在磨削热变形效应影响下的仿真结果的准确性。
  • 图  1  考虑磨削热变形的磨削示意图

    图  2  磨粒切削实时截面图

    图  3  单颗磨粒G的三维轨迹图

    图  4  平面工件磨削表面形貌仿真流程

    图  5  齿轮钢平面磨削装置

    图  6  考虑磨削热变形的优化仿真微观形貌

    图  7  不同砂轮转速下实验与仿真粗糙度

    图  8  不同磨削深度下实验与仿真粗糙度

    表  1  干研磨磨削加工参数

    参数数值
    砂轮粒度M 120
    砂轮直径ds/mm 100
    砂轮宽度b/mm 10
    工件尺寸 L16-W9-T9
    磨削主轴转速 vs /
    ( r·min−1)
    400,800,1200,
    1600,2000,2400
    切削深度/mm 0.005,0.01,0.015,
    0.02,0.025,0.03
    进给速率/(mm·min−1) 300
    下载: 导出CSV

    表  2  关于实验与仿真结果之间的粗糙度对比表

    砂轮转速/
    (r·min−1
    切削深度/
    mm
    实验测得形貌
    粗糙度Sa/μm
    考虑磨削相变的仿真模型
    粗糙度Sa/μm
    仿真与实验对比
    误差/%
    4000.011.3221.145713.31
    8000.8880.88680.135
    12000.8790.87380.592
    16000.7370.78105.967
    20000.6700.67681.015
    24000.6130.59902.282
    12000.0050.8410.85832.057
    0.010.8790.87380.592
    0.0150.9240.90002.597
    0.020.9320.91751.556
    0.0250.9440.92192.344
    0.030.9680.92624.314
    下载: 导出CSV
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出版历程
  • 收稿日期:  2021-04-19
  • 网络出版日期:  2023-05-29
  • 刊出日期:  2023-05-25

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