Journal of South China University of Technology (Natural Science Edition) ›› 2006, Vol. 34 ›› Issue (2): 8-11.

• Mechanical Engineering • Previous Articles     Next Articles

Integrated Hydrocylinder-Driven Multi-Platen Adapter for Powder Press

Zhou Zhao-yao  Huang Chun-man  He Hui  Shao Ming   

  1. College of Mechanical Engineering,South China Univ.of Tech.,Guangzhou 510640,Guangdong,China
  • Received:2005-05-19 Online:2006-02-25 Published:2006-02-25
  • Contact: 周照耀(1965-)，男，教授．主要从事金属塑性加工、粉末成形工艺和数值模拟的研究 E-mail:zhyzhou@scut.edu.cn
  • About author:周照耀(1965-)，男，教授．主要从事金属塑性加工、粉末成形工艺和数值模拟的研究
  • Supported by:

    国家高技术研究发展计划(863计划)资助项目(2001AA337010)；教育部专项经费资助项目(CG2003-GA005)；广东省攻关十五重大专项资助项目(A1040203)

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Abstract:

In order to press complex green compact with two upper levels and three lower levels,a set of multi-plat-en adapter driven by integrated hydrocylinder is designed and manufactured according to the characteristics of existing adapters for powder press.It is compatible with precise powder-metallurgy equipment and can be used to press complex green compact with two upper levels and three lower levels.The three lower platens are separately driven by four uniformly distributed hydrocylinders to balance the force,which means that the integrated hydrocylinder consists of twelve platen-used hydrocylinders.Moreover,the operation data about the location of each platen are collected by a grating ruler,and the displacements of punch heads in the pressing process are precisely controlled by a closed-loop hydraulic system .with an axial position accuracy at the punch head being ±0.01 mm.Thus,complicated powder-metallurgy green compacts with homogeneous density distribution can be pressed via the coordi-native movement of the platens.

Key words: powder metallurgy, integrated hydrocylinder, multi-platen adapter