A simple correlation between texture and earing

11th Hungarian Conference on Materials Science

Benke, M.^1 ; Hlavacs, A.^1 ; Petho, D.^1 ; Angel, D.A.^1 ; Sepsi, M.^1 ; Nagy, E.^2 ; Mertinger, V.^1

University of Miskolc, Institute of Physical Metallurgy Metalforming and Nanotechnology, Miskolc-Egyetemváros, Hungary^1

MTA-ME Materials Research Group, Miskolc-Egyetemváros, Hungary^2

关键词: Deep-drawing process;    Plastic anisotropy;    Strain calculations;    Texture components;    Texture data;    Textured materials;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/426/1/012003/pdf
DOI  :  10.1088/1757-899X/426/1/012003

来源: IOP

【 摘 要 】

The phenomenon of earing has been known since the rise of deep drawing process. It has been early recognized, that earing is caused by the plastic anisotropy of textured materials. Over the past decades, there have been many methods proposed to find a way to predict earing through either mechanical tests, the combination of texture data evaluation and strain calculations, or finite element analysis. The objective of the present study is to propose a simple, yet suitable method, with which the average earing value of a blank can be estimated. The method solely requires measured texture (ODF) data and is based on defining every individual texture component pole as the vectoral combination of their (+) and (-) earing direction components. The method was tested on a sample series with different average earing values taken from an industrial rolled and annealed, 3003 type Al semi-product coil. Satisfactory correlation was found between estimated and measured earing numbers.