高速切削铝合金2024-T4切削力的仿真研究
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摘要
利用有限元软件Advant Edge设计以切削力为目标,以切削速度、进给量和背吃刀量为自变量参数的三因素四水平正交试验,对硬质合金刀具切削2024-T4铝合金的加工过程进行2D仿真,研究了切削参数对切削力的影响规律。采用极差分析获得切削参数的最优组合,通过方差分析获得切削参数对切削力的显著性。结果表明:背吃刀量对切削力影响最大,切削速度影响最小,最优切削参数都是u_c=1250m/min,f=0.09mm/r,a_p=0.2mm;背吃刀量和进给量对F_x的影响显著,切削速度对F_x的影响不显著,切削速度、进给量和背吃刀量对F_y的影响显著。
Using the finite element software Advant Edge design cutting force as the goal, the cutting speed, feed rate and the amount of back tool as the independent variable parameters of the three factors and four levels of orthogonal test, machining of carbide cutting 2024-T4 aluminum alloy machining Process 2 D simulations were conducted to study the influence of cutting parameters on cutting forces. The range analysis was used to obtain the optimal combination of cutting parameters, and variance analysis was used to obtain the cutting force's significance to the cutting force. The results show that: the amount of backing blade has the greatest influence on the cutting force, and the cutting speed has the smallest influence. The optimal cutting parameters are uc=1250 m/min, f=0.09 mm/r, ap=0.2 mm, the amount of backing blade and feed has a significant influence on Fx, and the cutting speed has no effect on Fx. Significantly, the effects of cutting speed, feed, and back knife on Fx are significant.
Using the finite element software Advant Edge design cutting force as the goal, the cutting speed, feed rate and the amount of back tool as the independent variable parameters of the three factors and four levels of orthogonal test, machining of carbide cutting 2024-T4 aluminum alloy machining Process 2 D simulations were conducted to study the influence of cutting parameters on cutting forces. The range analysis was used to obtain the optimal combination of cutting parameters, and variance analysis was used to obtain the cutting force's significance to the cutting force. The results show that: the amount of backing blade has the greatest influence on the cutting force, and the cutting speed has the smallest influence. The optimal cutting parameters are uc=1250 m/min, f=0.09 mm/r, ap=0.2 mm, the amount of backing blade and feed has a significant influence on Fx, and the cutting speed has no effect on Fx. Significantly, the effects of cutting speed, feed, and back knife on Fx are significant.
引文
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[2]张蓉蓉,赵先锋,李长虹,李荣隆.基于Deform-3D的铝合金7075车削力模型的研究[J].组合机床与自动化加工技术,2016,(6):59-62.
[3]常艳艳,孙涛,李增强.硬铝合金超精密车削残余应力的仿真及试验[J].哈尔滨工业大学学报,2015,47(7):41-45.
[4]舒平生.基于Abaqus的A357铝合金正交切削加工有限元仿真及其实验研究[J].组合机床与自动化加工技术,2015,(8):43-50.