Journal of South China University of Technology (Natural Science Edition) ›› 2009, Vol. 37 ›› Issue (9): 117-122.

• Mechanical Engineering • Previous Articles     Next Articles

Experimental Investigation into Deposition Uniformity of Laminated Template Electrodeposition

Fan Hui 1.2 Tian Zong-jun2  Huang Yin-hui2  Liu Zhi-dong2   

  1. 1. Jiangsu Key Laboratory of Precision and Micro-Manufacturing Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, Jiangsu, China; 2. College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, Jiangsu, China
  • Received:2008-09-24 Revised:2009-02-04 Online:2009-09-25 Published:2009-09-25
  • Contact: 范晖（1978-），男，博士生，主要从事特种加工、快速成形研究． E-mail:xzfanhui@163．com
  • About author:范晖（1978-），男，博士生，主要从事特种加工、快速成形研究．
  • Supported by:

    国家自然科学基金资助项目（50575104）;南京航空航天大学科研创新基金资助项目（Y0605-052）

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Abstract:

In order to improve the deposition uniformity of laminated template electrodeposition（LTE） and to further simplify the auxiliary operation,three kinds of current configurations including direct current（DC）,anodic pulse current（PC） and pulse-reverse current（PRC） were respectively applied to LTE test,and such parameters of pulse-reverse current as pulse width,pulse frequency,working time,turn-off time and current density were modulated and optimized.Then,the thicknesses and micro-morphologies of the metal layers deposited with different current configurations were compared, finding that PRC offers better deposition uniformity, easier LTE operation and lower time cost. Finally, the function of PRC in diminishing surface roughness was theoretically analyzed, and a batch of copper parts, which are 20 mm × 20 mm in section size and 4mm in thickness, were deposited in optimized PRC conditions. The results verify the feasibility of the LTE with PRC.

Key words: laminated template, electrodeposition, pulse-reverse current, uniformity