Theoretical Analysis of Plastic Forming Process for Semi-Solid Material


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The plastic forming of magnesium alloy is difficult, but the semi-solid material forming is a good method solved this problem. The mechanical model of the semi-solid materials was treated as that of the continuous porous materials in the high solid volume fraction. The upper bound theory applied for semi-solid metal plastic forming process was developed. The velocity discontinuities exist not only in the tangential component but also in normal component for the kinematically admissible displacement increment filed. The latter one was responsible for a change in solid volume fraction when the material passes the discontinuity. An upper bound analytical model and theoretical method of plastic forming process for semi-solid material has been proposed. The calculating formulas of deformed power were derived. It is theoretical basement to apply further for the practice technology analysis such as the plastic forming of magnesium alloy.



Materials Science Forum (Volumes 488-489)

Edited by:

W.Ke, E.H.Han, Y.F.Han, K.Kainer and A.A.Luo




H. Yan and J. Xei, "Theoretical Analysis of Plastic Forming Process for Semi-Solid Material", Materials Science Forum, Vols. 488-489, pp. 389-392, 2005

Online since:

July 2005





[1] Spencer D B, Mehrabia R, Flemings M C.: Rheological behavior of Sn-15Pb in the crystallization range, Metallurgical Transactions, Vol. 3 (1972), p.1925-(1932).

[2] Xie Shuisheng and Huang Shenghong, Technology and application of semisolid forming, (Metallurgical Industry Press, 1999).

[3] Luo Shou-jing and Tian wentong: Research development of semi-solid metal plastic working mechanics, Journal of harbin institute of technology, Vol. 32, No. 5 (2000), pp.78-80.

[4] Yan Hong, Xei Ju-chen, Hu Guo-an, et al: Mechanics model of plastic forming of semi-solid metal, The Chinese Journal of Nonferrous Metals, Vol. 12 (S2) (2002), pp.136-139.

[5] Wang Ping, Lu Guimin, Cui Jianzhong: Upper Bound Solution of Thixoforming Force of A356, Chinese Journal of Applied Mechanics, Vol. 19, No. 3 (2002), pp.140-143.

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