Press Forming Technology Using Superplastic Deformation for Mg Alloy Sheet

Abstract:

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The square-cylindrical cup of AZ31 Mg alloy with a depth of 50mm and a width of 50 mm was successfully deep drawn from a rolled sheet with a thickness of 0.5 mm using a hydraulic press machine with a capacity of 60 tons. The blank was heated between the die and the blank holder kept in a temperature of 300 oC .The forming time was about 3 seconds. The fine-grained microstructure was observed at the corner with a sever strain. The grain refinement caused by the dynamic recrystallization contributed to generate high strain-rate superplasticity.

Info:

Periodical:

Materials Science Forum (Volumes 488-489)

Edited by:

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

Pages:

571-574

DOI:

10.4028/www.scientific.net/MSF.488-489.571

Citation:

H. Fujii et al., "Press Forming Technology Using Superplastic Deformation for Mg Alloy Sheet", Materials Science Forum, Vols. 488-489, pp. 571-574, 2005

Online since:

July 2005

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Price:

$35.00

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