• CN: 11-2187/TH
  • ISSN: 0577-6686

Journal of Mechanical Engineering ›› 2016, Vol. 52 ›› Issue (4): 20-28.doi: 10.3901/JME.2016.04.020

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Research Development on Wrinkling Prediction and Suppression for Sheet Hydroforming of Thin-walled Deep Drawing Parts

CHEN Yizhe1, LIU Wei1, 2, YUAN Shijian1, 2   

  1. 1. School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001;
    2. National Key Laboratory for Precision Hot Processing of Metals,Harbin Institute of Technology, Harbin 150001
  • Online:2016-02-15 Published:2016-02-15

Abstract: Deep drawn parts, which have been focused on by researchers for many decades, are widely used in the aerospace, automobile and ship industries. While with the new requirements of light weight, high accuracy, low cost and low energy, the ratio between thickness and diameter of some key components such as propellant storage tank of a launch vehicle is even lower than 0.3%, thus wrinkling cannot be neglected. This defect decreases the parts quality, reduces the molds life and affects the stability of industry production. The prediction method of the wrinkling, as well as the numerical simulation and experiments about this tricky problem are introduced. Furthermore, to solve the inner wrinkling, the sheet hydroforming technology development on the wrinkling control is shown. It can be concluded that appropriate sheet hydroforming process design can be used to control the wrinkling. The current problem in this area and the future study tendency are depicted.

Key words: energy method, sheet hydroforming, thin-walled deep drawing parts, wrinkling

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