首页|纵向超声振动钻削Cf/SiC复合材料有限元仿真分析

纵向超声振动钻削Cf/SiC复合材料有限元仿真分析

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Cf/SiC复合材料具有低密度、高强度比、高硬度、良好的耐腐蚀性和良好的热稳定性等优异性能,广泛应用于航天、航空及能源等领域.但由于其各向异性、非均匀性和高硬度使钻削加工过程中存在钻削轴向力大、刀具磨损严重等问题,纵向超声钻削能够明显降低钻削轴向力.本文运用Abaqus有限元仿真软件建立纵向超声钻削模型,材料模型由基体、纤维、界面组成,研究超声振幅对轴向力的影响规律,结果显示在转速6000r/min、进给量40mm/min,随着振幅的增加,轴向力相较普通钻削先降低后升高,在振幅幅值6μm处轴向力最小.
Finite Element Simulation Analysis of Cf/SiC Composites in Longitudinal Ultrasonic Vibration Drilling
Cf/SiC composites have excellent properties such as low density,high strength ratio,high hardness,good corrosion resistance and good thermal stability,and are widely used in aerospace,aviation and energy fields.However,due to its anisotropy,non-uniformity and high hardness,problems are obvious such as large axial force and serious tool wear in the drilling process.Based on the hypnosis that longitudinal ultrasonic drilling can significantly reduce the axial forces of the drilling,this study uses the Abaqus finite element simulation software to establish a longitudinal ultrasonic drilling model,the material model is composed of matrix,fiber and interface.and it also investigates the influence of ultrasonic amplitude on axial force.The results show that at the speed of 6000r/min and the feed of 40mm/min,with the increase of amplitude,the axial force decreases first and then increases compared with ordinary drilling,and the axial force is the smallest at the amplitude of 6 μm.

carbon fiber-reinforced silicon carbide matrix compositesfinite element simulationamplitudeaxial force

付宏鸽、黄留洋、张嘉慧、马慧

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北华航天工业学院机电工程学院,河北廊坊 065000

固安喜威一刀具有限公司,河北廊坊 065599

碳纤维增强碳化硅陶瓷基复合材料 有限元仿真 振幅 轴向力

2024

北华航天工业学院学报
北华航天工业学院

北华航天工业学院学报

影响因子:0.265
ISSN:1673-7938
年,卷(期):2024.34(6)