首页|An Assessment of the Grain Structure Evolution during Hot Forward Extrusion of Aluminum Alloy 7020
An Assessment of the Grain Structure Evolution during Hot Forward Extrusion of Aluminum Alloy 7020
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The current investigation is concerned with the grain structure evolution in an Al-Zn alloy (EN AW-7020) during the hot forward extrusion process. In order to analyze that, a miniature hot forward extrusion setup was designed which allows the quenching of the extrusion butt immediately after extrusion. In order to gain a better understanding of the process, the shape of the deformed grains was analyzed and the process was simulated. The shape of these grains was indentified in two directions in the different grain zones, e.g. dead metal zone and shear zone. The FE simulations showing the different grain zones were also illustrated. Simulation results and the micrographs were quite promising to find parameters for simulation models in order to predict grain sizes with the method presented in the current research work.
extrusionaluminummicrostructurefinite element analysis
A. Foydl、N. Ben Khalifa、A. Brosius、A.E. Tekkaya
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Institute of Forming Technology and Lightweight Construction (IUL), Technische Universitaet Dortmund, Germany
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