Journal of South China University of Technology (Natural Science Edition) ›› 2016, Vol. 44 ›› Issue (3): 16-22.doi: 10.3969/j.issn.1000-565X.2016.03.003

• Mechanical Engineering • Previous Articles     Next Articles

Experimental Investigation into Accuracy of Narrow-Slit Electrochemical Machining with Cathodic Compound Feeding

WANG Feng1 ZHAO Jian-she1 GAN Wei-min2 QI Lu1 TIAN Zong-jun1   

  1. 1.College of Mechanical and Electrical Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,Jiangsu,China; 2.Digital ECM Building Laboratory of Jiangsu Province,Changzhou Institute of Technology,Changzhou 213002,Jiangsu,China
  • Received:2015-08-24 Revised:2015-10-19 Online:2016-03-25 Published:2016-02-02
  • Contact: 赵建社(1976-)，男，博士，副教授，主要从事精密高效电解加工技术研究． E-mail:zhaojs@nuaa.edu.cn
  • About author:王峰(1987-)，男，博士生，主要从事阴极复合进给电解加工技术研究． E-mail:fengwang@ nuaa． edu． cn
  • Supported by:
    Supported by the National Natural Science Foundation of China(51475235，51205212)，the Natural Science Fund of Jiangsu Province of China(BK2012233)and the Pre-Research Foundation of CPLA General Equipment Department during the Twelfth Five-year Period(51318030403)

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Abstract: In order to improve the stability and localization of narrow-slit electrochemical machining,a cathodic com- pound feeding mode with continuous linear feeding and vibration was proposed,and the corresponding machining experi- ments were carried out on the basis of the improved waveform-adjustable vibration system with a vibration frequency of 0 ～50Hz and with a vibration amplitude of 0 ～2mm.The results show that,(1) in comparison with linear feeding,cathodic compound feeding is more effective in improving machining localization and reducing narrow slit’s width; (2) high vibration frequency and amplitude both help reduce the stray corrosion and improve the narrow-slit machining consistency; and (3) different shapes of narrow slits with a slit width of 0.305mm can be machined out by adopting the cathodic compound feeding mode.

Key words: electrochemical machining, compound feeding, narrow slit, machining localization

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