KFRP超声振动辅助钻削制孔有限元仿真研究  

Finite Element Simulation Research on KFRP Ultrasonic Vibration Aassisted Drilling and Hole Making

作　　者：何智伟 郑雷 孙晓晗 李宁波 宰金祺 董香龙 HE Zhi-wei;ZHENG Lei;SUN Xiao-han(Capital Aerospace Machinery Corporation,Beijing 100076;School of Mechanical Engineering,Changshu Institute of Technology,Changshu 215500;School of Mechanical Engineering,Yancheng Institute of Technology,Yancheng 224051)

机构地区：[1]首都航天机械有限公司,北京100076 [2]常熟理工学院机械工程学院,常熟215500 [3]盐城工学院机械工程学院,盐城224051

出　　处：《航空精密制造技术》2025年第1期21-24,共4页Aviation Precision Manufacturing Technology

基　　金：国家自然科学基金面上项目资助(51575470);江苏省高等学校基础科学(自然科学)研究重大项目资助(22KJA460009);江苏省自然科学基金资助项目(BK20201474)。

摘　　要：针对KFRP常规制孔时容易产生毛刺、分层和撕裂等质量问题,采用超声振动辅助加工技术进行有限元仿真研究。根据纤维增强复合材料Hashin失效准则,创建KFRP的仿真模型对孔加工过程进行动力学模拟。得到的仿真钻削力曲线与同条件下试验的钻削力曲线进行比较,误差小于20%,仿真较为合理;对比常规加工和超声加工仿真结果,超声加工轴向力降低,同时超声辅助加工能够抑制麻花钻加工KFRP过程中分层和毛刺的缺陷,改善制孔质量。In the traditional process of drilling KFRP(Kevlar fiber-reinforced composite material),there exist the problems of burrs,delamination and tears,the ultrasonic assisted machining technology was used to conduct research on finite element simulation.According to the Hashin failure criterion for FRP materials,a KFRP simulation model was created to dynamically simulate the hole processing process.Comparing the simulated drilling force curve obtained with the experimental drilling force curve under the same conditions,the error was less than 20%,and the simulation results were relatively reasonable.Compared with the simulation results of conventional machining and ultrasonic machining,the axial force of ultrasonic machining was reduced.At the same time,the ultrasonic assisted machining could suppress the defects of delamination and burr in the process of twist-drill drilling KFRP,and improve the quality of hole making.

关 键 词：凯夫拉纤维增强复合材料 超声振动 有限元分析 制孔质量 

分 类 号：TG147[一般工业技术—材料科学与工程]