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Investigation on the factors influencing the thickness distribution of superplastic-formed components

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Abstract

In the superplastic sheet forming process, the uniformity of the sheet’s final thickness distribution is vital for ensuring the good mechanical quality of the formed components. The influences of the component shape and the contact friction on the final thickness distribution were investigated in this work by using finite element method on a series of axisymmetric models. It was concluded that shape optimization and friction elimination are required to get uniform thickness distribution, and eventually to improve the mechanical quality of the formed components. The constitutive equation of the Ti-6Al-4V superplastic material was also determined on the basis of experimental data.

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Authors and Affiliations

  1. School of Mechanical Engineering and Energy, Zhejiang Univeristy, 310027, Hangzhou, China

    Gao Chong-yang

  2. School of Electrical Engineering, Zhejiang University, 310027, Hangzhou, China

    Fang You-tong

Authors
  1. Gao Chong-yang
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  2. Fang You-tong
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Corresponding author

Correspondence to Gao Chong-yang.

Additional information

Project supported by the National Natural Science Foundation of China (No. 50477030), and the Scientific Research Foundation for ROCS, State Education Ministry, China

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Chong-yang, G., You-tong, F. Investigation on the factors influencing the thickness distribution of superplastic-formed components. J Zheijang Univ Sci A 6, 711–715 (2005). https://doi.org/10.1631/jzus.2005.A0711

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  • DOI: https://doi.org/10.1631/jzus.2005.A0711

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