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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/26839

    Title: Cavitation behavior in superplastic 5083 Al alloy during multiaxial gas blow forming with lubrication
    Authors: Sun,PH;Wu,HY;Lee,WS;Shis,SH;Perng,JY;Lee,S
    Contributors: 機械工程研究所
    Date: 2009
    Issue Date: 2010-06-29 18:01:26 (UTC+8)
    Publisher: 中央大學
    Abstract: Despite its importance for industrial applications, the effect of lubrication on the cavitation behavior of superplastic materials has been given little attention. In this paper, a series of experiments were performed regarding bulging superplastic 5083 Al alloy sheet into dies with a cylindrical (cup) and rectangular (pan) die cavity for forming with and without lubrication, the formed parts were then evaluated to determine the effect of lubrication on the cavitation level evolution, thickness distribution, and void distribution. It was found that void shrinkage took place in the overlaid region for both forming with and without lubrication. The maximum void volume fraction could be effectively reduced for forming with lubrication: however, reductions in the maximum void volume fractions for cup forming were less significant than those for pan forming. (C) 2008 Elsevier Ltd. All rights reserved.
    Appears in Collections:[機械工程研究所] 期刊論文

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