China Mechanical Engineering ›› 2024, Vol. 35 ›› Issue (03): 524-533,540.DOI: 10.3969/j.issn.1004-132X.2024.03.014

Previous Articles     Next Articles

Study on Tearing of CFRP Thin Circular Tubes Machined by Ultrasonic Vibration Assisted Grinding

KANG Renke1;LU Bingwei1;CHEN Kailiang1;LI Shengchao2;DAI Jingbin2;DONG Zhigang1;BAO Yan1   

  1. 1.School of Mechanical Engineering,Dalian University of Technology,
    Dalian,Liaoning,116024
    2.Shanghai Composite Technology Co.,Ltd.,Shanghai,201112

  • Online:2024-03-25 Published:2024-04-23

超声振动辅助磨削CFRP复合材料薄管撕裂损伤研究

康仁科1;陆冰伟1;陈凯良1;李晟超2;戴晶滨2;董志刚1鲍;岩1   

  1. 1.大连理工大学机械工程学院,大连,116024
    2.上海复合材料科技有限公司,上海,201112

  • 通讯作者: 鲍岩(通信作者),男, 1987年生,副教授、博士研究生导师。研究方向为面向构件性能的超精密加工、难加工材料多能场复合加工、弱刚性构件精密加工等理论与技术。发表论文60余篇。E-mail:baoy@dlut.edu.cn。
  • 作者简介:康仁科,男,1962年生,教授、博士研究生导师。研究方向为超精密加工与特种加工技术、难加工材料高效加工技术。发表论文300余篇。E-mail:kangrk@dlut.edu.cn。
  • 基金资助:
    国家重点研发计划(2019YFA0708902);大连市高层次人才创新支持计划(2020RD02);中央高校基本科研业务费专项资金(DUT22LAB501);上海航天科技创新基金(SAST2020-107)

Abstract: Aiming at the problems of tear damages in the ultrasonic vibration assisted grinding processes of CFRP composite thin tubes with unclear causes, ultrasonic vibration assisted grinding tests were carried out on M55J and T300 composite thin tubes, and the effects of ultrasonic amplitude, feed rate and spindle speed on grinding force and tear size were investigated. Through the force analysis of grinding processes and the calculation of the maximum thickness of undeformed chips, the formation reason of tear position and the change law of tear size were analyzed. The results show that the grinding force decreases with the increase of ultrasonic amplitude, increases with the increase of feed rate, and has little correlation with spindle speed. Tear is easy to appear on the inner walls of CFRP composite tubes, and the length and height decreases with the increase of ultrasonic amplitude, increases with the increase of feed rate, and decreases with the increase of spindle speed. 

Key words: carbon fiber reinforced polymer(CFRP), thin tube, ultrasonic vibration assisted grinding, grinding force, tearing

摘要: 针对碳纤维增强复合材料(CFRP)薄管超声振动辅助磨削过程中存在撕裂损伤且形成原因不明确的问题,通过对M55J和T300复合材料薄管开展超声振动辅助磨削试验,探究了超声振幅、进给量及主轴转速对磨削力和撕裂尺寸的影响规律,通过对磨削过程的受力分析和对最大未变形切屑厚度的计算,分析了撕裂位置的形成原因和撕裂尺寸的变化规律。结果表明:磨削力随超声振幅的增大而减小,随进给量的增大而增大,与主轴转速的关联性较小;撕裂易出现于CFRP薄管内壁,其长度与高度随超声振幅的增大而减小,随进给量的增大而增大,随主轴转速的增大而减小。

关键词: 碳纤维增强复合材料, 薄管, 超声振动辅助磨削, 磨削力, 撕裂

CLC Number: