东北大学学报:自然科学版 ›› 2019, Vol. 40 ›› Issue (3): 392-397.DOI: 10.12068/j.issn.1005-3026.2019.03.017

• 机械工程 • 上一篇    下一篇

新型点磨削砂轮磨削温度仿真实验

尹国强1, 巩亚东1, 李宥玮1, 王飞2   

  1. (1. 东北大学 机械工程与自动化学院, 辽宁 沈阳110819; 2. 首都航天机械公司, 北京100076)
  • 收稿日期:2018-01-05 修回日期:2018-01-05 出版日期:2019-03-15 发布日期:2019-03-08
  • 通讯作者: 尹国强
  • 作者简介:尹国强(1983-),男,辽宁沈阳人,东北大学讲师,博士; 巩亚东(1958-),男,辽宁本溪人,东北大学教授,博士生导师.
  • 基金资助:
    国家自然科学基金资助项目(51705069,51775100); 中央高校基本科研业务费专项资金资助项目(N160303002).

Simulation Experiment of Grinding Temperature for Novel Point Grinding Wheel

YIN Guo-qiang1, GONG Ya-dong1, LI You-wei1, WANG Fei2   

  1. 1. School of Mechanical Engineering & Automation,Northeastern University, Shenyang 110819, China; 2. Capital Aerospace Machinery Company, Beijing 100076, China.
  • Received:2018-01-05 Revised:2018-01-05 Online:2019-03-15 Published:2019-03-08
  • Contact: YIN Guo-qiang
  • About author:-
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摘要: 点磨削倾斜角α和新型砂轮粗磨区倾角θ的存在使得砂轮与工件接触区域发生变化,由线接触变为理论上的点接触,磨削区温度也随之发生变化.本文采用有限元法仿真点磨削温度,采用热电偶法测量磨削区温度,设计了五因素四水平L16(45)正交试验;通过极差分析,得出影响点磨削温度的主次因素为:粗磨区倾角θ>磨削深度ap>倾斜角α>进给速度vf>砂轮速度vs,降低磨削区温度的最优参数组合为:θ(20°),ap(0.01mm),α(1°),vf(0.6mm/min),vs(35m/s).最后采用单因素实验,验证仿真的正确性并且深入分析了各参数对点磨削温度的影响规律及原因.

关键词: 点磨削, 新型砂轮, 磨削温度, 有限元仿真, 正交试验

Abstract: The wheel-workpiece contact zone is changed due to point grinding inclining angle α and novel grinding wheel with coarse grinding area angle θ. It changes from line contact into point contact in theory and the grinding zone temperature is also changed. In this paper,the grinding zone temperature is simulated by the finite element method. The orthogonal experiments L16(45)was designed and thermocouple measurement was used for grinding experiments. Through range analysis, primary and secondary factors affecting grinding temperature is that coarse grinding area angle θ>cutting depth ap>inclining angle α>axial feeding speed vf>grinding wheel speed vs. The optimum parameters combination of reducing the grinding zone temperature is that θ(20°), ap(0.01mm),α(1°),vf(0.6mm/min),vs(35m/s). Finally,by means of single factor experiments, the correctness of the simulation was verified and the influence of each parameter on grinding zone temperature was deeply analyzed.

Key words: point grinding, novel grinding wheel, grinding temperature, finite element simulation, orthogonal experiment

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