• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2018, Vol. 54 ›› Issue (21): 221-230.doi: 10.3901/JME.2018.21.221

• 制造工艺与装备 • 上一篇    下一篇

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基于动态轮廓采样法的轴向超声振动辅助磨削工件表面形貌预测与试验验证

王艳1, 李德蔺1, 刘建国1, 宋红林2, 彭水平1, 汪锐1   

  1. 1. 上海理工大学机械工程学院 上海 200093;
    2. 江苏三菱磨料磨具有限公司 盐城 224000
  • 收稿日期:2017-11-04 修回日期:2018-04-21 出版日期:2018-11-05 发布日期:2018-11-05
  • 通讯作者: 王艳(通信作者),女,1969年出生,博士,教授。主要研究方向为精密磨削加工与特种加工。E-mail:yanwang909909@163.com
  • 作者简介:李德蔺,男,1993年出生,硕士。主要研究方向为精密磨削加工。E-mail:18116349010@163.com;刘建国,男,1962年出生,高级工程师。主要研究方向为精密磨削工艺。E-mail:liujianguo@usst.edu.cn;宋红林,男,1967年出生,高级工程师。主要研究方向为磨削加工。E-mail:shl@sanlingcn.com;彭水平,男,1990年出生,硕士。主要研究方向为精密磨削加工。E-mail:15901876956@163.com;汪锐,男,1995年出生,硕士。主要研究方向为精密磨削加工。E-mail:18301926280@163.com
  • 基金资助:
    2015江苏省重点研发计划资助项目(BE2015139)。

Prediction and Experimental Verification of Workpiece Surface Topology in Axial Ultrasonic Vibration Assisted Grinding Based on Dynamic Profile Sampling Method

WANG Yan1, LI Delin1, LIU Jianguo1, SONG Honglin2, PENG Shuiping1, WANG Rui1   

  1. 1. School of Mechanical Engineering, University of Shanghai for Science and Technology, Shanghai 200093;
    2. Jiangsu Mitsubishi Abrasives Co., Ltd., Yancheng 224000
  • Received:2017-11-04 Revised:2018-04-21 Online:2018-11-05 Published:2018-11-05

摘要: 提出了一种基于动态轮廓采样法的轴向超声振动辅助磨削的工件表面形貌预测方法。假设磨粒直径服从正态分布,磨粒位置服从随机分布,生成砂轮表面形貌的模型,从运动学角度建立了轴向超声振动辅助磨削过程中任意磨粒的轨迹方程,针对磨粒运动轨迹的特点,提出了动态轮廓采样方法。通过建立磨削沟槽变宽模型,引入了磨削弹性变形模型和塑性堆积模型,对动态轮廓采样方法进行了修正,最终得出工件表面形貌的预测结果。对预测结果进行了试验验证,对比分析了工件表面形貌的预测结果和实测结果,两者特征相似,且比较工件表面粗糙度的预测值和实测值平均误差为5.3%,从而验证了该预测方法的准确性。

关键词: 动态轮廓采样法, 工件表面形貌, 预测, 轴向超声振动辅助磨削

Abstract: A novel predicting method which is based on the dynamic profile sampling method for workpiece surface topology in axial ultrasonic vibration assisted grinding is presented. The surface topology model of grinding wheel is generated by assumptions that the diameters of sphere particles are distributed normally, and the positions of particles are distributed randomly. The formula of arbitrary particle motion path in axial ultrasonic vibration assisted grinding is established in a kinematic view. The dynamic profile sampling method is presented aiming at the feature of particle motion path. Then this method is amended by establishing the grove-broadening model as well as introducing the elastic deformation model and plastic pile-up model. Then the final surface topology of workpiece is generated. An experimental verification is conducted for the predicted results. A comparing analysis shows that predicted and measured surface topology of workpiece are featured similarity. Additionally, the average error between the predicted and measured surface roughness of workpiece is 5.3%, which verifies the accuracy of the predicting method.

Key words: axial ultrasonic vibration assisted grinding, dynamic profile sampling method, prediction, workpiece surface topology

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