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An Approach in Prediction of Failure in Resistance Spot Welded Aluminum 6061-T6 under Quasi-static Tensile Test
School of Mechanical Engineering, Iran University of Science and Technology, Iran .
School of Mechanical Engineering, Iran University of Science and Technology, Iran .
Department of Aeronautical and Vehicle Engineering, KTH – Royal Institute of Technology, Sweden .
Linköping University, Department of Management and Engineering, Engineering Materials. Linköping University, The Institute of Technology.
2012 (English)In: Proceedings of the Institution of mechanical engineers. Part B, journal of engineering manufacture, ISSN 0954-4054, E-ISSN 2041-2975, Vol. 226, no 6, 1026-1032 p.Article in journal (Refereed) Published
Abstract [en]

The aim of this article is to predict the failure load in resistance spot welded aluminum 661-T6 sheets with 2 mm thickness under quasi-static tensile test. Various welding parameters, e.g. welding current, welding time and electrode force are selected to produce welded joints with different quality. The results show that for all the samples in this study only interfacial failure mode was observed in tensile-shear test and no pull-out mode was observed. According to the failure mode, an empirical equation was used for the prediction of failure load based on nugget size and hardness of failure line. Microstructure study has been carried out to investigate microstructural changes in the welded joints. For determination of the minimum hardness, microhardness tests have been carried out to find hardness profiles. The minimum hardness value was observed for a thin layer around the nugget with large and coarse grains. The results show that by using the presented empirical equation, the failure can be predicted with a good agreement only by measuring nugget size.                   .

Place, publisher, year, edition, pages
Sage Publications, 2012. Vol. 226, no 6, 1026-1032 p.
Keyword [en]
Resistance spot welding, aluminum 6061-T6, failure load, nugget size
National Category
Engineering and Technology Materials Engineering
Identifiers
URN: urn:nbn:se:liu:diva-81243DOI: 10.1177/0954405411435198OAI: oai:DiVA.org:liu-81243DiVA: diva2:551183
Available from: 2012-09-10 Created: 2012-09-10 Last updated: 2017-12-07

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Peng, Ru

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CiteExportLink to record
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  • de-DE
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