Benke, Márton
(2020)
Prediction of earing of aluminium sheets from {111} pole figures.
Other.
UNSPECIFIED.
(Unpublished)
Abstract
Crystallographic texture causes anisotropic formability of metal sheets, which
results in the formation of uneven cup heights during deep drawing, called earing.
Over the past decades, several methods had been developed to predict the earing
behaviour of aluminium alloys. These methods are rather complex and can only be
applied within strict sheet thickness ranges. Recently, a simple method has been
presented and successfully applied on different sheet thicknesses. The method relies
solely on {h00} type pole figure data. However, it is desired to be able to predict
earing from other reflections as well. In this manuscript, a method which predicts
the type and magnitude of earing only from the data of {111} pole figure
measurements, is presented. The method was applied on a series of 0.3 mm and 3
mm thick cold rolled and annealed aluminium sheets, exhibiting rolling and
recrystallization textures and the combination of these. It is shown that the proposed
method gave similar results to those of deep drawing tests. It is concluded that using
the presented method, the earing of aluminium sheets can be characterized solely
from {111} pole figure measurement data.
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Prediction of earing of aluminium sheets from {111} pole figures. (deposited 16 Sep 2020 06:08)
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