东北大学学报（自然科学版）

东北大学学报（自然科学版） ›› 2022, Vol. 43 ›› Issue (8): 1127-1133.DOI: 10.12068/j.issn.1005-3026.2022.08.009

• 机械工程 • 上一篇    下一篇

基于声发射监测的砂轮磨损实验

尹国强1， 王东2， 关云匀1， 王佳辉1   

  1. (1. 东北大学 机械工程与自动化学院， 辽宁 沈阳110819； 2. 中国科学院金属研究所 沈阳材料科学国家实验室， 辽宁 沈阳110016)
  • 修回日期:2021-09-06 接受日期:2021-09-06 发布日期:2022-08-11
  • 通讯作者: 尹国强
  • 作者简介:尹国强(1983-)，男，辽宁沈阳人， 东北大学副教授.
  • 基金资助:
    国家自然科学基金资助项目(51771193，52005092)； 中央高校基本科研业务费青年教师科研启动基金资助项目(N2003024).

Grinding Wheel Wear Experiment Based on Acoustic Emission Monitoring

YIN Guo-qiang1， WANG Dong2， GUAN Yun-yun1， WANG Jia-hui1   

  1. 1. School of Mechanical Engineering & Automation， Northeastern University， Shenyang 110819， China; 2. Shenyang National Laboratory for Materials Science， Institute of Metal Research， Chinese Academy of Sciences， Shenyang 110016， China.
  • Revised:2021-09-06 Accepted:2021-09-06 Published:2022-08-11
  • Contact: YIN Guo-qiang
  • About author:-
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摘要： 难加工材料的高硬度和高耐磨性使得磨削加工过程中砂轮的损耗变快，目前主要依靠经验判断砂轮的修整和更换周期，很有可能导致修整不及时的情况发生.本文用声发射信号和磨削力信号共同精确监测砂轮磨损状态，通过分析不同磨损状态的砂轮磨削时对应的声发射信号的特征参数以及磨削力和磨削力比的变化情况，综合判断了实验过程中砂轮的磨损状态.结果表明:声发射信号特征参数都与砂轮磨损状态有一定相关性，且磨削力比与砂轮磨损程度的相关性最大，证明了声发射监测技术在砂轮修整中的有效性，为实际生产加工提供了理论指导.

关键词: 难加工材料；磨削加工；声发射；砂轮磨损；监测

Abstract: Due to the high hardness and wear resistance of difficult-to-machine materials， the grinding wheel wears faster in the grinding process. At present， the dressing and replacement cycle of the grinding wheel is mainly judged by experience， which may lead to untimely dressing. Accordingly， the wear state of grinding wheel was accurately monitored by combining acoustic emission signals and grinding force signals. By analyzing the characteristic parameters of acoustic emission signals， the changes of grinding force and grinding force ratio during the grinding of grinding wheels with different wear states， the wear state of grinding wheels during the experimental process was comprehensively judged. The results showed that the acoustic emission signals are all correlated with the grinding wheels’ wear state， and the grinding force ratio is the most correlated with the grinding wheels’ wear degree， which proves the effectiveness of the acoustic emission monitoring technology in grinding wheel dressing and provides theoretical guidance for the actual production process.

Key words: difficult-to-machine material; grinding process; acoustic emission(AE); grinding wheel wear; monitoring

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