微细电火花加工中材料蚀除机理的仿真研究

系统仿真学报 ›› 2015, Vol. 27 ›› Issue (12): 2891-2897.

• 仿真建模与仿真算法及数值仿真 • 上一篇下一篇

微细电火花加工中材料蚀除机理的仿真研究

王石^1,2, 郭建文^2,3, 江务学¹, 曹文梁¹

1.东莞职业技术学院计算机工程系,广东东莞 523808;
2.东莞华中科技大学制造工程研究院,广东东莞 523808;
3.华中科技大学机械科学与工程学院,湖北武汉 430074

收稿日期:2014-12-17 修回日期:2015-04-19 出版日期:2015-12-08 发布日期:2020-07-30
作者简介:王石(1977-), 男, 湖南湘阴, 硕士, 讲师, 研究方向为计算机仿真、智能优化算法与软件。
基金资助:
国家自然科学基金(51175207); 广东省科技项目(2013B090600131, 2013B010134006)

Simulative Study of Machining Mechanism of Material in Micro-EDM

Wang Shi^1,2, Guo Jianwen^2,3, Jiang Wuxue¹, Cao Wenliang¹

1. Department of Computer Engineering, Dongguan Polytechnic, Dongguan 523808, China;
2. DG-HUST Manufacturing Engineering Institute, Dongguan 523808, China;
3. School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China

Received:2014-12-17 Revised:2015-04-19 Online:2015-12-08 Published:2020-07-30

摘要/Abstract

摘要： 微细电火花加工过程存在极大的复杂性和随机性,针对分子动力学模型以及基于传热学理论的数值模型在研究微细电火花加工机理时存在的不足,采用双温模型-分子动力学混合建模方法构建微细电火花加工中的阳极模型,并基于MPI并行技术建立相应并行仿真平台。仿真模型通过在放电通道电子系统内设置热源来模拟放电通道对阳极材料的热作用,进而通过分析放电加工过程中材料的晶格温度、应力和电子场温度的时间-空间演变过程等来分析阳极材料在不同能量输入情况下的蚀除机理。

关键词: 微细电火花, 分子动力学方法, 双温模型, MPI编程, 并行算法

Abstract: Great complexity and randomness exist in micro-electrical discharge machining (micro-EDM) process. Considering the limitations of molecular dynamics model and numerical model based on heat transfer theories in studies on machining mechanism of micro-EDM, a hybrid modeling method in which the two-temperature model and molecular dynamics simulation model were integrated was used to construct the machining model for the anode in micro-EDM process, and the corresponding parallel simulation platform was built based on MPI technology. In this simulation model, a heat source was placed in the electron system to mimic the thermal action of the discharge channel on the anode material, and furthermore, by analyzing temporal-spatial evolutions of temperature and stress in the anode material and temperature in the electron system, different machining mechanisms of anode material were revealed correspondingly when different amounts of energy were input.

Key words: micro-electrical discharge machining, molecular dynamics simulation, two-temperature model, MPI programming, parallel algorithm

中图分类号:

TG661

王石, 郭建文, 江务学, 曹文梁. 微细电火花加工中材料蚀除机理的仿真研究[J]. 系统仿真学报, 2015, 27(12): 2891-2897.

Wang Shi, Guo Jianwen, Jiang Wuxue, Cao Wenliang. Simulative Study of Machining Mechanism of Material in Micro-EDM[J]. Journal of System Simulation, 2015, 27(12): 2891-2897.

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微细电火花加工中材料蚀除机理的仿真研究

Simulative Study of Machining Mechanism of Material in Micro-EDM

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