吉林大学学报(工学版) ›› 2016, Vol. 46 ›› Issue (1): 205-212.doi: 10.13229/j.cnki.jdxbgxb201601031

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Multi-objective optimization of stamping forming process of head based on response surface model

ZHOU Jie, LUO Yan, WANG Xun, WANG Hui, LI Yang, TAO Ya-ping   

  1. College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China
  • Received:2014-06-01 Online:2016-01-30 Published:2016-01-30

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Abstract: In the forming process of heads the defects of wrinkling, swelling, nonuniformity of the thickness, and springback deformation occurred in a certain factory. To solve these problems, optimized scheme is proposed. The objectives of this scheme are reducing the swelling, enlarging the region of uniform thickness, and decreasing the springback deformation. The optimizing factors include the clearance between the punch and die, the matrix radius, the height of drawbead and the relative position of the drawbead. The combination of software of Matlab and Design-Expert was adopted to conduct fitting and modeling analysis of the Response Surface Model (RSM). A second-order RSM with three objective values was obtained. The accuracy of the obtained RSM was verified and the error margin was less than 7.4%, which was available for subsequent optimizations. The actual production results show that heads with good surface finish, small shape error and high dimension precision can be produced by the application of the proposed multi-objective optimization scheme of forming process.

Key words: casting process and equipment, stamping, heads, response surface method, multi-objective optimization, finite element simulation

CLC Number: 

  • TG386.41
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