Journal of South China University of Technology (Natural Science Edition) ›› 2014, Vol. 42 ›› Issue (7): 80-85.doi: 10.3969/j.issn.1000-565X.2014.07.013

• Mechanical Engineering • Previous Articles     Next Articles

Forming Quality Control of Multi-Position Progressive Stamping Based on Numerical Simulation

Xia Qin-xiang1 Wang Ting1 Chen Zhi-ping2 Zhao Xue-zhi1 Qiu Zun-wen2   

  1. 1.School of Mechanical and Automotive Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China; 2.Guangdong Kelon Mould Co.,Ltd.,Foshan 528303,Guangdong,China
  • Received:2014-01-27 Revised:2014-04-18 Online:2014-07-25 Published:2014-06-01
  • Contact: 夏琴香(1964-),女,教授,博士生导师,主要从事塑性加工及模具计算机技术研究. E-mail:meqxxia@scut.edu.cn
  • About author:夏琴香(1964-),女,教授,博士生导师,主要从事塑性加工及模具计算机技术研究.
  • Supported by:

    广东省中国科学院全面战略合作项目( 2012B091100251) ; 广东省教育部产学研结合项目( 2010B090400094)

Abstract:

In order to improve the forming quality of multi-position progressive stamping and reduce the cost of diemanufacturing,the stamping process of the structural part used for car door rail is simulated in terms of bendingdrawing,trimming,shaping and flanging as well as of springback after unloading.Then,such forming defects ascarrier distortion,cracks in the process of deep drawing,flanging and springback are predicted and analyses on whythose defects occur are performed.Moreover,corresponding measures for solutions to or control of such problemsare raised,which aid to rebuild the finite element model,and thus ideal simulation results are made.Finally,aprogressive stamping trial is carried out according to the simulation results,and a set of qualified left-right car doorrails is successfully produced by means of double-die symmetrical pressing method.In addition,the manufacturedprogressive die is able to meet the requirement of mass production.

Key words: multi-position progressive stamping, forming quality control, carrier distortion, crack, springback

CLC Number: