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      Caracterización del proceso de anodizado en aluminio Al3003 y Al6063 utilizando técnicas del análisis multifactorial y diseño robusto Translated title: Characterization of anodizing process on aluminum Al3003 and Al6063 using the multifactorial analysis and robust design techniques

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          Abstract

          Este estudio pretende cuantificar el efecto de los parámetros del proceso en el anodizado del aluminio Al3003 y Al6063. Para ello, se realizaron estudios de la microdureza, rugosidad, espesor de capa y porosidad de la superficie anodizada, utilizando técnicas de análisis multifactorial y diseño robusto. Se establecieron los siguientes niveles de los parámetros: temperatura [15°C, 25°C], tiempo [30min; 60min], concentración de electrolito [1,2M; 2M], densidad de corriente [1Amp/dm²; 3Amp/dm²], aluminio [Al3003, Al6063], y como variable de ruido, la deformación plástica [0%, 10%, 20%, 30%]. Se propuso un diseño fraccionado 2(7-2) mixto, con el cual se realizaron un total de 48 pruebas usando soluciones electrolíticas de ácido sulfúrico. La medición de microdureza se realizó con un indentador Vickers con carga de 400g; la medición de rugosidad Ra se realizó con un rugosímetro MITUTOYO SJ-201P; la porosidad y el espesor de la capa de óxido se captó mediante microscopia electrónica. A los resultados se les realizó un análisis de varianza (ANOVA), para determinar los factores significativos y la robustez de los efectos. Se encontraron resultados de microdureza [HV]: [85,74-308,87]; rugosidad [μm]: [0,45-3,28]; porosidad [poros]: [410,72-969,52] y espesor de óxido [μm]: [12,82-94,69]. Finalmente, se muestran las combinaciones de parámetros que producen las mejores respuestas.

          Translated abstract

          This study pretends to quantify the effect of the process parameters in the anodizing of aluminum Al3003 and Al6063. For it, were made studies of the micro-hardness, roughness, thickness of layer and porosity of the anodized surface, using multifactorial analysis and robust design techniques. The following parameters levels were established: temperature [15°C, 25°C], time [30min; 60min], electrolyte concentration [1.2M; 2M], current density [1Amp/dm²; 3Amp/dm²], aluminum [Al3003, Al6063], and the plastic deformation [0%,10%,20%,30%], as noise parameter. A combined fractional design 2(7-2) was proposed, a total of 48 tests were made using sulfuric acid electrolytic solutions. The measurement of micro- hardness was made with an indentador Vickers loaded with 400g; the measurement of roughness Ra was made with a surface roughness tester MITUTOYO SJ-201P; and electronic microscopy was used to observe the porosity and the thickness of the oxide layer. A variance analysis (ANOVA) was made to establish the significant factors and the robustness of the effects in the results. Micro-hardness [HV]: [85.74-308.87]; roughness [μm]: [0.45-3.28]; porosity [pores]: [410.72-969.52] and thickness of oxide [μm]: [12.82-94.69] results were found. Finally, the best results and their parameters are shown for each response.

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Journal
                rtfiuz
                Revista Técnica de la Facultad de Ingeniería Universidad del Zulia
                Rev. Téc. Ing. Univ. Zulia
                Facultad de Ingeniería, Universidad del Zulia
                0254-0770
                December 2012
                : 35
                : 3
                : 233-242
                Affiliations
                [1 ] Universidad de Los Andes
                [2 ] Universidad de Los Andes
                Article
                S0254-07702012000300003
                b6d21664-048e-4485-8535-ae71fc558543

                http://creativecommons.org/licenses/by/4.0/

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                SciELO Venezuela

                Self URI (journal page): http://www.scielo.org.ve/scielo.php?script=sci_serial&pid=0254-0770&lng=en
                Categories
                ENGINEERING, MULTIDISCIPLINARY

                General engineering
                aluminio,anodizado,diseño factorial,ANOVA,robustez,aluminum,anodizing,factorial design,robustness

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