Journal of South China University of Technology (Natural Science Edition) ›› 2007, Vol. 35 ›› Issue (3): 1-5.

• Mechanical Engineering •     Next Articles

Manufacturing of Inner Micro Grooves of Copper Heat Pipe via High -Speed Oil-Filled Spinning

Li Yong  Tang Yong  Xiao Bo-wu  Li Xi-bing  Zeng Zhi-xin   

  1. School of Mechanical Engineering , South China Univ. of Tech. , Guangzhou 510640 , Guangdong , China
  • Received:2006-01-18 Online:2007-03-25 Published:2007-03-25
  • Contact: 李勇(1974-)，男，讲师，主要从事微细加工及数字化制造技术的研究. E-mail:meliyong@scut.edu.cn
  • About author:李勇(1974-)，男，讲师，主要从事微细加工及数字化制造技术的研究.
  • Supported by:

    国家自然科学基金重点资助项目(50436010) ;国家自然科学基金资助项目(50375055) ;广东省自然科学基金资助项目( 04105942 ) ;广东省科技攻关项目(2005B10201002 )

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Abstract:

Inner axial micro grooves of copper heat pipe were manufactured via the high-speed oil-filled spinning with drawing process , and the corresponding mechanism was then investigated. Experimental results show that the manufacturing of micro grooves includes two stages , namely , the extrusion and the forming stages , that the proce-ssing of micro grooves is mainly affected by various factors , such as the geometric parameters and working position of the multi-tooth mandrel , the depth reduction , the drawing speed , the spinning speed and the working tempera-ture, that micro grooves with different shapes , depths and depth/width ratios can be obtained by varγing the extru-sion depth , the feed rate , the mandrel shape and size , and that the high -speed oil-filled spinning is feasible to the manufacturing of micro grooves due to its full material utilization , high efficiency and low cost.

Key words: oil-filled spinning, micro groove, heat pipe, mandrel