Journal of South China University of Technology (Natural Science Edition) ›› 2006, Vol. 34 ›› Issue (2): 57-61.

• Mechanical Engineering • Previous Articles     Next Articles

Development of Drawing Die for Heat-Shield Panel of Autom obile Engine Based on Finite Element

Wu Chun-ruing  Ruan Feng  Qiu Hong-yang   

  1. College of Mechanical Engineering,South China Univ.of Tech.,Guangzhou 510640,Guangdong,China
  • Received:2004-10-08 Online:2006-02-25 Published:2006-02-25
  • Contact: Wu Chun—ming(born in 1980)，male，Ph．D．candidate，mainly researches on numerical simulation of sheet metal stamping process E-mail:armingdou@ 263.net
  • About author:Wu Chun—ming(born in 1980)，male，Ph．D．candidate，mainly researches on numerical simulation of sheet metal stamping process
  • Supported by:

    Supported by the Key Scientific andTechnological Project of Guangzhou City(2003Z3一D0181，2004Z3-D0101)

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Abstract:

A finite element model describing the drawing process of the heat-shield panel of automobile engine is established by using the commercial dynamic explicit code LS-DYNA.By the established model,the effect of BHF(Blank Holder Force)on the drawing process is analyzed,with the results showing that no appropriate BHF can effectively restrain the severe wrinkling and folding as well as the tearing.Therefore,drawbead is em-ployed together with BHF to control the drawing process,and several typical layouts of drawbead are analyzed and compared via FEA (Finite Element Analysis),with the most effective one then being applied to stamping experiments.The results indicate that the results of FEA accord well with those of the experiments,and that the proposed drawbead layout can eliminate the severe wrinkling and folding as well as avoid the excessive thinning.By the FEA,engineers can make correct decisions at the early design stage,and the development cycle of the drawing die for the panel shortens to 4 weeks fron the past 1 2 weeks.

Key words: drawing die, automobile panel, development, finite element analysis