Numerical simulation of titanium alloy machining in electric discharge machining process

被引：23

作者：

Xie Bao-cheng ^{[1
,2
]}

Wang Yu-kui ^{[1
,2
]}

Wang Zhen-long ^{[1
,2
]}

Zhao Wang-sheng ^{[3
]}

机构：

[1] Harbin Inst Technol, Minist Educ, Key Lab Microsyst & Microstruct Mfg, Harbin 150001, Peoples R China

[2] Harbin Inst Technol, Sch Mechatron Engn, Harbin 150001, Peoples R China

[3] Shanghai Jiao Tong Univ, Sch Mech Engn, Shanghai 200240, Peoples R China

来源：

TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2011年 / 21卷

基金：

中国国家自然科学基金;

关键词：

titanium alloy; electrical discharge machining; thermo-physical model; finite element method;

D O I：

10.1016/S1003-6326(11)61620-8

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

An axisymmetric three-dimensional thermo-physical model for the electrical discharge machining of titanium alloy was developed using finite element method. To efficiently predict the temperature distribution and the material removal rate, the model considers some realistic parameters such as the plasma channel radius based on discharge current and discharge duration, the latent heat of melting and evaporation, the percentage of discharge energy transferred to the workpiece and Gaussian distribution of heat flux. Numerical simulation of the single spark discharge of titanium alloy machining in electric discharge machining process was carried out using software ANSYS. The effect of various process parameters on temperature distributions along the radius of the workpiece was reported. Finally, the model was validated through EDM experiments, showing that it can efficiently predict material removal rate.

引用

页码：S434 / S439

页数：6

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