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Prediction of Earing of Hot-Rolled Al Sheets from Pole Figures

Institute of Physical Metallurgy, Metal Forming and Nanotechnology, University of Miskolc, 3515 Miskolc, Hungary
Author to whom correspondence should be addressed.
Metals 2021, 11(1), 99;
Received: 11 December 2020 / Revised: 30 December 2020 / Accepted: 1 January 2021 / Published: 6 January 2021
(This article belongs to the Section Metal Casting, Forming and Heat Treatment)
The formation of uneven cup heights during deep drawing is called earing. This phenomenon is caused by the planar anisotropy of formability in sheets, which is the result of crystallographic texture. In addition to analytical and finite element methods, a simple and quick method was developed recently to predict the earing profile of Al sheets solely from the data of {200} pole figures. So far, the method was applied on final state sheets cold rolled to 0.3–3 mm thickness and subsequently annealed. Within this manuscript, the earing prediction method is applied on 3003 type Al sheets with the thickness of ~6 mm, being in the hot-rolled state. Texture examinations were performed at different depths, from which earing profiles were calculated. For comparison, earing profiles were calculated from Lankford values that were determined by tensile tests. It is shown that in the case of hot-rolled Al sheets, if the grain structure is uniform across the thickness of the sheet, the earing profile can be appropriately calculated from the full {200} pole figure obtained from surface X-ray Diffraction (XRD) texture measurements. View Full-Text
Keywords: aluminum; hot-rolled sheet; texture; earing aluminum; hot-rolled sheet; texture; earing
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MDPI and ACS Style

Hlavacs, A.; Szucs, M.; Mertinger, V.; Benke, M. Prediction of Earing of Hot-Rolled Al Sheets from Pole Figures. Metals 2021, 11, 99.

AMA Style

Hlavacs A, Szucs M, Mertinger V, Benke M. Prediction of Earing of Hot-Rolled Al Sheets from Pole Figures. Metals. 2021; 11(1):99.

Chicago/Turabian Style

Hlavacs, Adrienn, Mate Szucs, Valeria Mertinger, and Marton Benke. 2021. "Prediction of Earing of Hot-Rolled Al Sheets from Pole Figures" Metals 11, no. 1: 99.

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