基于有限元仿真结果和车削实验的刀屑平均摩擦因数估计方法

中国机械工程 ›› 2014, Vol. 25 ›› Issue (8): 1006-1009,1016.

基于有限元仿真结果和车削实验的刀屑平均摩擦因数估计方法

毕煌圣;熊良山;黄若峰;毛宽民

华中科技大学,武汉,430074

出版日期:2014-04-25 发布日期:2014-05-06
基金资助:
国家科技支撑计划资助项目(2012BAF08B01)

An Approach to Estimate Tool-chip Average Friction Coefficient Based on FEM Simulation Results and Turning Experiments

Bi Huangsheng;Xiong Liangshan;Huang Ruofeng;Mao Kuanmin

Huazhong University of Science and Technology,Wuhan,430074

Online:2014-04-25 Published:2014-05-06
Supported by:
The National Key Technology R&D Program（No. 2012BAF08B01）

摘要/Abstract

摘要：

刀屑摩擦因数的取值对工件已加工表面残余应力分布的有限元仿真结果影响很大,但一般有限元仿真软件并没有提供刀屑摩擦因数的确定方法。为此,提出了一种基于AdvantEdge FEM软件仿真实验数据,并结合车削实验及残余应力测定结果估计刀屑摩擦因数的方法。与AdvantEdge FEM软件默认的摩擦因数相比,按照该方法计算出的摩擦因数仿真所得到的车削工件的残余应力分布与实验测定的残余应力分布更为接近。
.

关键词: 切削加工, 残余应力, 刀屑摩擦因数, 有限元仿真

Abstract:

The friction coefficient between chip and tool rake face has a significant impact on residual stress distribution on workpiece surface in FEM simulations, but general FEM softwares do not provide a method for determining the friction coefficient. As for this problem, a method for estimating the average tool-chip friction coefficient was proposed herein by using AdvantEdge FEM simulations, turning experimental results and the residual stress distribution. The residual stress distribution simulated by the friction coefficient which was calculated with the method mentioned above is closer to experimental residual stress distribution, compared with the AdvantEdge FEM default friction coefficient.

Key words: cutting process, residual stress, tool-chip friction coefficient, FEM simulation

中图分类号:

TG506

毕煌圣, 熊良山, 黄若峰, 毛宽民. 基于有限元仿真结果和车削实验的刀屑平均摩擦因数估计方法[J]. 中国机械工程, 2014, 25(8): 1006-1009,1016.

Bi Huangsheng, Xiong Liangshan, Huang Ruofeng, Mao Kuanmin . An Approach to Estimate Tool-chip Average Friction Coefficient Based on FEM Simulation Results and Turning Experiments[J]. China Mechanical Engineering, 2014, 25(8): 1006-1009,1016.

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