The Effects of the Heating Conditions on the Hydro-Formability of the Aluminum Alloys at High Temperatures

Abstract:

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Modern automobiles are built with a steadily increasing variety of materials and semifinished products. The traditional composition of steel sheet and cast iron is being replaced with other materials such as aluminum and magnesium. But low formability of these materials has prevented the application of the automotive components. The formability can be enhanced by conducting the warm hydroforming using induction heating device which can raise the temperature of the specimen very quickly. The specimen applied to the test is AA6061 extruded tubes which belong to the age-hardenable aluminum alloys. But in the case of AA6061 age hardening occurs at room temperature or at elevated temperatures before and after the forming process. In this study the effects of the heating condition such as heating time, preset temperature, holding time during die closing and forming time on the hydroformability are analyzed to evaluate the phenomena such as dynamic strain hardening and ageing hardening at high temperatures after the hydroforming process.

Info:

Periodical:

Materials Science Forum (Volumes 475-479)

Main Theme:

Edited by:

Z.Y. Zhong, H. Saka, T.H. Kim, E.A. Holm, Y.F. Han and X.S. Xie

Pages:

3307-3310

DOI:

10.4028/www.scientific.net/MSF.475-479.3307

Citation:

B.J. Kim et al., "The Effects of the Heating Conditions on the Hydro-Formability of the Aluminum Alloys at High Temperatures", Materials Science Forum, Vols. 475-479, pp. 3307-3310, 2005

Online since:

January 2005

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$35.00

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