Numerical Research of Micro-pit ECM Based on Coupling Electric and Flow Fields

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Numerical Research of Micro-pit ECM Based on Coupling Electric and Flow Fields

He Yafeng1,2;Lu Wenzhuang2;Gan Weiming1,3;Yin Feihong1;Wu Xiaofeng1

1.Changzhou Institute of Technology, Changzhou, Jiangsu, 213002
2.Nanjing University of Aeronautics and Astronautics, Nanjing, 210016
3.Digital Electrochemical Machining Key Laboratory of Jiangsu Province, Changzhou, Jiangsu, 213002

Online:2016-05-25 Published:2016-05-19

基于电场和流场耦合的微坑电解加工数值研究

何亚峰1, 2;卢文壮2; 干为民1,3;尹飞鸿1;吴小锋1

1.常州工学院，常州，213002
2.南京航空航天大学，南京，210016
3.江苏省数字化电化学加工重点实验室, 常州，213002

基金资助:
国家自然科学基金资助项目（51305049）；江苏省科技支撑工业计划项目（BE2014051）；常州市应用基础研究计划项目（CJ20140046）；江苏省第四期“333工程”科研资助项目（BRA2015080）

Abstract

Abstract: Texture technology might reduce surface friction and wear of friction pair. A square micro-pit ectrochemical machining（ECM） as an object, the theoretical model of coupled field was established herein taking into account the mutual relationship of electric and flow fields in process. The distribution of coupling field potential, current density and volume fraction was obtained by using numerical methods, the relationship of inlet pressure and outlet maximum hydrogen volume fraction was discussed, thus it provides a theoretical basis for a square micro-pit ECM, At the same time, the square micro-pit ECM tests were done to obtain better test pieces.

Key words: square micro-pit, coupling filed, volume fraction； current density

摘要： 表面织构技术能够有效降低摩擦副表面摩擦和磨损。以方形微坑电解加工为对象，充分考虑加工中电场与流场相互关系建立了耦合场理论模型，采用数值计算方法得到了耦合场电势分布、电流密度分布和体积分数分布等，探讨了入口压力与出口最大氢气体积分数的影响关系，研究结果可为方形微坑电解加工提供一定的参考。最后开展了方形微坑电解加工实验，得到了方形微坑实验件。

关键词: 方形微坑；耦合场；体积分数, 电流密度

CLC Number:

TG356.11

He Yafeng, Lu Wenzhuang, Gan Weiming, Yin Feihong, Wu Xiaofeng. Numerical Research of Micro-pit ECM Based on Coupling Electric and Flow Fields[J]. China Mechanical Engineering.

何亚峰, , 卢文壮, 干为民, 尹飞鸿, 吴小锋. 基于电场和流场耦合的微坑电解加工数值研究[J]. 中国机械工程.

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Numerical Research of Micro-pit ECM Based on Coupling Electric and Flow Fields

基于电场和流场耦合的微坑电解加工数值研究

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