Improvement of the foaming process for 4045 and 6061 aluminium foams by using the Taguchi methodology |
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Authors: | Eusebio Solórzano José Antonio Reglero Miguel Ángel Rodríguez-Pérez José Antonio de Saja María Luz Rodríguez-Méndez |
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Affiliation: | (1) CELLMAT GROUP, Condensed Matter Physics Department, Faculty of Sciences, University of Valladolid, Valladolid, 47011, Spain;(2) Dpto. Química Inorgánica, E.T.S. Ingenieros Industriales, Universidad de Valladolid, Paseo del Cauce s/n, Valladolid, 47001, Spain |
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Abstract: | Taguchi methodology has been applied to the production process of aluminium foams to investigate the variability detected
in several properties (including bulk density, outward appearance and density homogeneity along foaming direction), for foaming
tests carried out under identical conditions. The analysis of the process has been performed separately for two different
alloys, the 4045 and 6061. The results have allowed finding the main factors that influence those properties. In addition,
it has been possible to establish those foaming conditions able to minimize the variability in density, to improve the outward
appearance and to obtain a higher homogeneity in density, all at the same time. Different final factors have been found for
the two alloys; such differences have been explained in terms of the different viscosity of the aluminium melts as well as
the different content of foaming agent. |
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