A micro deep drawing of ARB processed aluminium foil AA1235
by Syamsul Hadi; Anh Kiet Tieu; Cheng Lu; Hongtao Zhu
International Journal of Materials and Product Technology (IJMPT), Vol. 47, No. 1/2/3/4, 2013

Abstract: The flow stress of AA1235 aluminium series-H14 material of 16 to 300 µm thickness has been determined here for the first time which showed the stress reduced significantly with thickness. A stress-strain relationship has been determined as a function of the thickness and grain size. A limiting drawing ratio (LDR) of 2.003 was achieved by a subsequent heat treatment of accumulative roll bonded (ARB) materials before the micro-cup drawing. The cup was successfully formed as the combined process has reduced the planar anisotropy, increased the normal anisotropy and improved the formability of a cup.

Online publication date: Sat, 28-Jun-2014

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