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Journal of Zhejiang University SCIENCE A 2005 Vol.6 No.7 P.711~715

http://doi.org/10.1631/jzus.2005.A0711


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


Author(s):  GAO Chong-yang, FANG You-tong

Affiliation(s):  School of Mechanical Engineering and Energy, Zhejiang University, Hangzhou 310027, China; more

Corresponding email(s):   gaochy@zju.edu.cn

Key Words:  Thickness distribution, Component shape, Contact friction, SPF, Ti-6Al-4V


GAO Chong-yang, FANG You-tong. Investigation on the factors influencing the thickness distribution of superplastic-formed components[J]. Journal of Zhejiang University Science A, 2005, 6(7): 711~715.

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author="GAO Chong-yang, FANG You-tong",
journal="Journal of Zhejiang University Science A",
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pages="711~715",
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doi="10.1631/jzus.2005.A0711"
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T1 - 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.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

Reference

[1] Comstock, R.J., Kaiping, L., Wagoner, R.H., 2001. Simulation of axisymmetric sheet forming tests. J. Mater. Proc. Tech., 117:153-168.

[2] Cope, M.T., Ridley, N., 1986. Superplastic deformation characteristic of micro-duplex Ti-6Al-4V alloy. Mat. Sci. and Tech., 2:140-145.

[3] Garriga-Majo, D., Curtis, R.V., 2001. Geometric analysis of thinning during superplastic forming. Mater. Sci. Forum, 357-359:213-218.

[4] Ghosh, A.K., Hamilton, C.H., 1982. Influences of material properties and microstructure on superplastic forming. Metall. Trans., 13A:733-743.

[5] Kleinermann, J.P., Ponthot, J.P., 2003. Parameter identification and shape/process optimization in metal forming simulation. J. Mater. Proc. Tech., 139(1-3):521-526.

[6] Sedaghi, R.S., Pursell, Z.S., 1994. Finite element modelling of superplastic forming. Mater. Sci. Forum, 170-172:571-576.

[7] Yu, T.X., Zhang, L.C., 1995. Plastic Bending: Theory and Applications. World Scientific Publishing Company, Singapore.

[8] Wood, R.D., Bonet, J., 1996. A review of the numerical analysis of superplastic forming. J. Mater. Proc. Tech., 60:45-53.

Open peer comments: Debate/Discuss/Question/Opinion

<1>

vijay@No address<ssvijayananth@rediff.com>

2012-11-30 20:02:27

good paper

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