| Investigation on the factors influencing the thickness distribution of superplastic-formed components |
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| 作者姓名： | 高重阳 方攸同 |
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| 作者单位： | School of Mechanical Engineering and Energy Zhejiang University，School of Electrical Engineering Zhejiang University Hangzhou 310027，China，Hangzhou 310027，China |
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| 基金项目： | 中国科学院资助项目，the Scientific Research Foundation for ROCS |
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| 摘 要： | 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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| 关 键 词： | 厚度分布 超塑性材料 接触摩擦 SPF 机械性质 |
| 收稿时间： | 2005-02-01 |
| 修稿时间： | 2005-05-13 |
Investigation on the factors influencing the thickness distribution of superplastic-formed components |
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| Gao Chong-yang,Fang You-tong.Investigation on the factors influencing the thickness distribution of superplastic-formed components[J].Journal of Zhejiang University Science,2005,6(7):711-715. |
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| Authors: | Gao Chong-yang Fang You-tong |
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| Institution: | (1) School of Mechanical Engineering and Energy, Zhejiang Univeristy, 310027 Hangzhou, China;(2) School of Electrical Engineering, Zhejiang University, 310027 Hangzhou, China |
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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-6A1-4V superplastic material was also determined on the basis of experimental data. |
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| Keywords: | Thickness distribution Component shape Contact friction SPF Ti-6A1-4V |
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