华南理工大学学报(自然科学版) ›› 2007, Vol. 35 ›› Issue (3): 1-5.

• 机械工程 •    下一篇

铜热管内壁微沟槽的高速充液旋压加工

李勇 汤勇 肖博武 李西兵 曾志新   

  1. 华南理工大学 机械工程学院,广东 广州 510640
  • 收稿日期:2006-01-18 出版日期:2007-03-25 发布日期:2007-03-25
  • 通信作者: 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
  • 作者简介: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.
  • 基金资助:

    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 )

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 )

摘要: 对直齿微沟槽铜热营的高速充液旋压拉拔成形加工机理进行了研究,建立了微沟槽高速元液旋压成形的几何模型,通过实验发现:微沟槽的加工包括挤压和成形两个阶段;影响微沟槽成形的主要因素包括多齿芯头几何参数、芯头位直、减薄量、拉拔速度、旋压器转速和工作温度等;通过控制挤压深度、进给量、芯头形状与位直等,可加工出不同形状、不同深宽比及不同壁厚的微沟槽;高速充液旋压力口工微沟槽在生产上具有可行性,其材料利用率和生产效率高,成本低廉.

关键词: 充液旋压, 微沟槽, 热管, 芯头

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