Journal of South China University of Technology (Natural Science Edition) ›› 2006, Vol. 34 ›› Issue (7): 35-39.

• Mechanical Engineering • Previous Articles     Next Articles

Numerical Simulation of Blank Size in Forming Automobile Engine Hood Panel

Qiu Hong-yang1  Huang Ya-juan2   

  1. 1.College of Mechanical Engineering,South China Univ.of Tech.,Guangzhou 510640,Guangdong,China; 2.Guangzhou Automobile Technical Center,Guangzhou 510640,Guangdong,China
  • Received:2005-09-15 Online:2006-07-25 Published:2006-07-25
  • Contact: 丘宏扬(1946-)，男，副教授，主要从事塑性加工与模具计算机技术的研究． E-mail:scutqhy@public.guangzhou.gd.cn
  • About author:丘宏扬(1946-)，男，副教授，主要从事塑性加工与模具计算机技术的研究．
  • Supported by:

    广州市科技攻关项目(2004ZZ3-D0101)

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Abstract:

The formation process of automobile engine hood panels is investigated by means of the numerical simu-lation using a dynamic explicit FEA(Finite Element Analysis)software eta/DYNAFORM. Night simulated stam-ping models in two groups are then established to analyze the influences of the initial blank shape and the technologi-cal supplementing dimension on the formation of the engine hood panel, each using the rectangular blank model and the cutting-angle blank model. Proper blank dimension is thus obtained. The results show that the formation is greatly affected by the shape and dimension of the blank,that adjusting the dimension in a certain range can im-prove the stamping formation if the blank shape is unmeet,but can not solve the problem thoroughly,and that the cutting-angle blank,especially the one with an angle of 75°,is more suitable for the formation than the square blank because the latter may cause large size consumption.

Key words: automobile engine hood panel, stamping, forming, blank size, numerical simulation