中国机械工程2025，Vol.36Issue(4)：760-769,779,11.DOI:10.3969/j.issn.1004-132X.2025.04.013
基于细观仿真建模的CFRP纵-扭超声铣削材料去除机理研究
Material Removal Mechanism of CFRP in Longitudinal-torsional Ultrasonic Milling Based on Mesoscopic Simulation Model
摘要
Abstract
In order to reveal the material removal mechanism of CFRPs in longitudinal-torsional ultrasonic vibration milling,a simulation study of CFRP mesoscopic-cutting was carried out.The ki-nematic characteristics of longitudinal-torsional ultrasonic vibration milling were analyzed,and a 3D mesoscopic-cutting model of CFRPs was established.The fiber removal mechanism,matrix damage,chip morphology and cutting force of conventional cutting and longitudinal-torsional ultrasonic vibra-tion cutting were compared under different fiber orientation angles.The results show that when the fi-ber orientation angle is 0°,the longitudinal-torsional ultrasonic vibration cutting impact characteristics accelerate the fiber bending processes,and the fiber removal mechanism at the cutting-edge changes from conventional rolling to scratching.When the fiber orientation angle is 45° and 90°,the impact characteristics enhance the shear effects of the cutting-edge on the fiber,especially when the fiber ori-entation angle is 90°.When the fiber orientation angle is 135°,the fiber removal mechanism changes from large area bending to local fracture.Longitudinal-torsional ultrasonic vibration milling is benefi-cial to restrain matrix damage,improve chip morphology and reduce heat accumulation in the cutting areas and decrease the average cutting forces.The experiments verify the accuracy of the simulation a-nalysis.关键词
碳纤维增强树脂基复合材料/纵-扭超声振动/细观仿真/材料去除机理/纤维方向角Key words
carbon fiber reinforced polymer(CFRP)/longitudinal-torsional ultrasonic vibration/mesoscopic simulation/material removal mechanism/fiber orientation angle分类
机械制造引用本文复制引用
张超,任莹晖,于晓琳,李茂君,余承阳,杜新亮..基于细观仿真建模的CFRP纵-扭超声铣削材料去除机理研究[J].中国机械工程,2025,36(4):760-769,779,11.基金项目
国家自然科学基金(52075161,52275422) （52075161,52275422）
