华南理工大学学报(自然科学版) ›› 2010, Vol. 38 ›› Issue (5): 105-109.doi: 10.3969/j.issn.1000-565X.2010.05.021

• 机械工程 • 上一篇    下一篇

模板阴极电解加工群孔的成形规律

李冬林 朱荻 李寒松   

  1. 南京航空航天大学 机电学院, 江苏 南京 210016
  • 收稿日期:2009-06-22 修回日期:2009-10-13 出版日期:2010-05-25 发布日期:2010-05-25
  • 通信作者: 李冬林(1975-),男,博士生,主要从事特种加工技术研究. E-mail:ldlnuaa@nuaa.edu.cn
  • 作者简介:李冬林(1975-),男,博士生,主要从事特种加工技术研究.
  • 基金资助:

    国家自然科学基金重点资助项目(50635040); 江苏省自然科学基金资助项目(BK2008043)

Shaping Law of Matrix-Hole by Electrochemical Machining with Template Cathode

Li Dong-lin  Zhu Di Li  Han-song   

  1. College of Mechanical and Electrical Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,Jiangsu,China
  • Received:2009-06-22 Revised:2009-10-13 Online:2010-05-25 Published:2010-05-25
  • Contact: 李冬林(1975-),男,博士生,主要从事特种加工技术研究. E-mail:ldlnuaa@nuaa.edu.cn
  • About author:李冬林(1975-),男,博士生,主要从事特种加工技术研究.
  • Supported by:

    国家自然科学基金重点资助项目(50635040); 江苏省自然科学基金资助项目(BK2008043)

摘要: 采用模板阴极进行电解加工群孔试验,探讨了模板阴极电解加工的成形规律,建立了反映实际加工过程的数学模型,并考虑非线性电解液的影响,利用参数化有限元分析技术对蚀除过程进行模拟和数值求解,最后进行了相应的试验验证.结果显示:仿真蚀除的深度和直径与实际加工的深度和直径相符;采用模板阴极双面电解加工方式可减小孔的锥度和缩短加工时间;模板阴极电解加工方式可低成本、高效率地在金属薄板上加工出群孔结构.

关键词: 电解加工, 电场, 有限元, 成形规律

Abstract:

In this paper,first,template cathode is applied to the electrochemical machining of matrix-hole,and the corresponding shaping law is investigated.Next,a mathematical model to describe the actual machining process is established.Then,by considering the effects of nonlinear electrolyte,the parametric finite element method is adopted to simulate and numerically analyze the erosion process.Finally,some experiments are performed to verify the proposed model.The results indicate that the simulated erosion depth and diameter accord well with the actual ones,that the two-side electrochemical machining with template cathode helps to reduce the taper of the matrix-hole and shorten the machining time,and that the electrochemical machining with template cathode helps to obtain matrix-hole on metal sheet with low cost and high efficiency

Key words: electrochemical machining, electric field, finite element, shaping law