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      Influence of zinc coating on nugget development and mechanical properties in dissimilar welded joints DP600 - AISI304 obtained by the RSW process Translated title: Influencia del recubrimiento de zinc en la formación del punto y las propiedades mecánicas de la unión disímil DP600 - AISI304 obtenida mediante el proceso RSW

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          Abstract

          Abstract This paper studies the influence of zinc coating of galvanized DP600 steel (DP600G) on nugget development and on the mechanical properties of dissimilar DP600 - AISI304 welded joints obtained by resistance spot welding process (RSW). RSW evaluations consisted of determining, from the dynamic resistance curves, the different stages involved in nugget formation. The experimental results showed that zinc coating on the DP600G steel has a significant influence on the time needed for the start of nugget formation, producing a two times longer delay for non-galvanized steel. Expulsion time was delayed by 1.12 times. The presence of Zn in DP600G/AISI304 welded joints produced smaller nugget diameters as compared to the DP600/AISI304 joints for the same experimental conditions; however, higher peak failure load values were obtained for the former. The causes of this unusual behavior are also analyzed in this paper.

          Translated abstract

          Resumen Este trabajo investiga la influencia del recubrimiento de zinc del acero DP600 (DP600G) en la formación del punto y las propiedades mecánicas de las uniones disímiles DP600 - AISI304 obtenidas mediante el proceso de soldadura por resistencia eléctrica por puntos (RSW). El análisis consistió en determinar, a partir de las curvas de resistencia dinámica, las diferentes etapas en la formación del punto. Los resultados experimentales mostraron que el recubrimiento de zinc del acero DP600G influye significativamente en el tiempo necesario para el inicio de la formación del punto, dos veces superior al del acero no galvanizado. El tiempo de la expulsión se retrasó 1,12 veces. La presencia de Zn en las uniones soldadas DP600G/AISI304 produjo diámetros del punto más pequeños en comparación con las uniones DP600/AISI304 para las mismas condiciones experimentales; sin embargo, se obtuvieron valores de carga máxima de fallo más altos para las primeras.

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          Most cited references26

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          Microstructure and fracture characteristics of spot-welded DP600 steel

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            Optimization of spot welding process parameters in dissimilar joint of dual phase steel DP600 and AISI 304 stainless steel to achieve the highest level of shear-tensile strength

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              • Abstract: not found
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              Microstructure and failure behavior of dissimilar resistance spot welds between low carbon galvanized and austenitic stainless steels

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                Author and article information

                Journal
                dyna
                DYNA
                Dyna rev.fac.nac.minas
                Universidad Nacional de Colombia (Medellín, Antioquia, Colombia )
                0012-7353
                2346-2183
                March 2022
                : 89
                : 220
                : 121-129
                Affiliations
                [5] Ponta Grossa Paraná orgnameUniversidade Tecnológica Federal do Paraná Brazil hcf151@ 123456yahoo.es
                [1] Santiago de Cuba orgnameUniversity of Oriente Cuba espinel@ 123456uo.edu.cu
                [4] Uberlândia Minas Gerais orgnameUniversidade Federal de Uberlândia orgdiv1Faculty of Mechanical Engineering Brazil vilarinho@ 123456ufu.br
                [3] orgnameUniversity of Calabria orgdiv1Department of Physics Italy lorenzo.caputi@ 123456fis.unical.it
                [2] Santiago de Cuba orgnameUniversity of Oriente orgdiv1Faculty of Mechanical and Industrial Engineering Cuba mario@ 123456uo.edu.cu
                Article
                S0012-73532022000100121 S0012-7353(22)08922000121
                10.15446/dyna.v89n220.95334
                5897e89f-7b6b-4b50-8602-78fbf11f169a

                This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

                History
                : 28 April 2021
                : 17 January 2022
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 26, Pages: 9
                Product

                SciELO Colombia

                Categories
                Articles

                dissimilar joints,dynamic resistance,nugget development,mechanical properties,galvanized steel,resistance spot welding,resistencia dinámica,desarrollo del punto,propiedades mecánicas,soldaduras disímiles,aceros galvanizados,soldadura por resistencia eléctrica por puntos

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