材料科学与工程学报2025，Vol.43Issue(3)：396-404,485,10.DOI:10.14136/j.cnki.issn1673-2812.2025.03.008
曲面锥形刀具的CFRP螺旋铣孔有限元仿真分析
Finite Element Simulation Analysis of CFRP Helical Milling Based on Curved Tapered Tool
摘要
Abstract
In order to improve the quality of hole wall and reduce the damage of burrs,tears and delamination caused by carbon fiber reinforced polymer(CFRP)in the process of helical milling,based on the characteristics of helical milling,a curved conical tool was designed.Firstly,the rotary contour equation of the tool was obtained by differential method.Then,a three-dimensional curved tapered geometric model was constructed to analyze the geometric morphology and size of the undeformed simulation chips in different processing stages.Finally,the finite element model of CFRP helical milling of the tool was established,and the stress/strain distribution characteristics and cutting force change trend during the machining process were clarified.The influence of spindle speed,revolution speed and feed speed on axial force Fz was revealed.The results show that the stress/strain distribution of the curved tapered tool in CFRP helical milling is uniform.The cutting force is small and the fluctuation is gentle,and the axial force shows a gentle upward trend after the initial contact of the tool,which avoids the chipping phenomenon caused by the sudden increase of the axial force of the traditional tool.The peak value of the axial force is only 85.91 N.It can be seen from the single factor test that Fz decreases with the increase of spindle speed,and increases with the increase of revolution speed and feed speed.Due to the curved tapered tool improves the utilization rate of the side edge,it can effectively suppress the generation of burrs and delamination in the CFRP helical milling.关键词
螺旋铣孔/CFRP/曲面锥形刀具/未变形仿真切屑/有限元仿真Key words
Helical milling/CFRP/Curved tapered tool/Undeformed simulation chip/Finite element simulation分类
通用工业技术引用本文复制引用
朱瑞彪,周兰,安国升,王云龙,李光奇,钟云..曲面锥形刀具的CFRP螺旋铣孔有限元仿真分析[J].材料科学与工程学报,2025,43(3):396-404,485,10.基金项目
国家自然科学基金项目(52265049) （52265049）
甘肃省青年博士基金项目(2021QB-043) （2021QB-043）
甘肃省自然科学基金项目(25JRRA073) （25JRRA073）
