首页|超声振动切削对残余应力影响的数值分析

超声振动切削对残余应力影响的数值分析

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利用AdvantEdge FEM软件对YG6X刀具加工Ti6Al4V合金进行一维和二维超声振动切削仿真,分析超声振动参数对残余应力的影响.模拟仿真表明:一维X向振动时,振动频率和振动幅度对残余应力影响不明显,最大压应力和压应力区深度增大不明显;一维Y向振动时,振动频率越小,残余压应力和压应力区深度越大,振动幅度越大,残余压应力越大,压应力区深度越大;二维振动通过极差分析确定A1B1C3为最佳组合,振动参数对残余应力的影响由大到小依次为Ay>(Fx,Fy)>Ax.结果证明,超声振动切削可以增大工件表层残余应力,改善工件的耐磨性和疲劳强度.
Numerical Analysis of Effect of Ultrasonic Vibration Cutting on Residual Stress
One-dimensional and two-dimensional ultrasonic vibration cutting simulation of Ti6Al4V are carried out by the AdvantEdge FEM software and YG6X tool,and the effect of ultrasonic vibration parameters on residual stress is ana-lyzed.The simulation results show that the influence of vibration frequency and amplitude on the residual stress is not obvi-ous,and the maximum compressive stress and the depth of the compressive stress zone are not obvious.In one-dimensional Y-direction vibration,the smaller the vibration frequency is,the greater the residual compressive stress and the depth of the compressive stress zone is,the greater the vibration amplitude is and the residual compressive stress is,and the greater the depth of the compressive stress zone is.A1B1C3 is the best combination of two-dimensional vibration through range analy-sis.The influence of vibration parameters on residual stress is Ay>(Fx,Fy)>Ax.The conclusion is that ultrasonic vibra-tion cutting can increase the residual stress on the surface of the workpiece and improve the wear resistance and fatigue strength of the workpiece.

AdvantEdge FEMultrasonic vibrationresidual stressrange analysisdepth of compressive stress zone

王亮、罗文翠、郭文静、牛玉艳

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兰州工业学院绿色切削加工技术及应用甘肃省高校重点实验室

兰州工业学院甘肃省精密加工技术及装备工程研究中心

AdvantEdge FEM 超声振动 残余应力 极差分析 压应力区深度

甘肃省科技厅重点研发计划甘肃省高等学校创新基金兰州工业学院青年科技创新项目

22YF7GA1322020B-23718K-004

2024

工具技术
成都工具研究所

工具技术

CSTPCD北大核心
影响因子:0.147
ISSN:1000-7008
年,卷(期):2024.58(3)
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