Joining of Dissimilar alloy Sheets (Al 6063&AISI 304) during Resistance Spot Welding Process: A Feasibility Study for Automotive industry

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Reddy Sreenivasulu


Present design trends in automotive manufacture have shifted emphasis to alternative lightweight materials in order to achieve higher fuel efficiency and to bring down vehicle emission. Although some other joining techniques are more and more being used, spot welding still remains the primary joining method in automobile manufacturing so far. Spot welds for automotive applications should have a sufficiently large diameter, so that nugget pullout mode is the dominant failure mode. Interfacial mode is unacceptable due to its low load carrying and energy absorption capability. Strength tests with different static loading were performed in, to reveal the failure mechanisms for the lap-shear geometry and the cross-tension geometry. Based on the literature survey performed, venture into this work was amply motivated by the fact that a little research work has been conducted to joining of dissimilar materials like non ferrous to ferrous. Most of the research works concentrated on joining of different materials like steel to steel or aluminium alloy to aluminium alloy by resistance spot welding. In this work, an experimental study on the resistance spot weldability of aluminium alloy (Al 6063) and austenitic stainless steel (AISI304) sheets, which are lap joined by using a pedestal type resistance spot welding machine. Welding was conducted using a 45-deg truncated cone copper electrode with 10-mm face diameter. The weld nugget diameter, force estimation under lap shear test and T – peel test were investigated using digital type tensometer attached with capacitive displacement transducer (Mikrotech, Bangalore, Model: METM2000ER1). The results shows that joining of Al 6063 and AISI 304 thin sheets by RSW method are feasible for automotive structural joints where the loads are below 1000N act on them, it is observed that by increasing the spots per unit length, then the joint with standing strength to oppose failure is also increased linearly incase of interfacial failure mode and non linear for pullout failure mode.



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Assistant Professor in Mechanical Engineering Department


ETAL, L. K. (2012) Resistance Spot Welding of dissimilar Steels, Acta Polytechnica, v. 52, n. 3, p. 43-47

GOODARZI, M.; MARASHI, S. P. H.; POURANVARI, M. (2009) Dependence of overload performance on weld attributes for resistance spot welded galvanized low carbon steel. Journal of Materials Processing Technology, v. 209, n. 9, p. 4379–4384.

HAYAT, F. (2011) Resistance Spot Weldability of Dissimilar Materials: BH180-AISI304L Steels and BH180-IF7123 Steels, Journal of Material Science Technology, v. 27, n. 11, p. 1047-1058.

KAH, P.; MARTIKAINEN, J. (2012) Current trends in welding processes and materials: improve in effectiveness, Rev.Adv.Mater. Sci., n. 30, p. 189-200.

KHAN, M. I.; KUNTZ, M. L.; ZHOU, Y. (2008) Effects of weld microstructure on static and impact performance of resistance spot welded joints in advanced high strength steels. Science and Technology of Welding and Joining, v. 13, n. 1, p. 49–59.

POURANVARI, M. (2011) Prediction of Failure Mode in AISI 304 Resistance spot welds, Association of Metallurgical Engineers of Serbia, Metalurgija-MJoM, v. 17, n. 1, p. 23-29.

POURANVARI, M.; ABEDI, A.; MARASHI, P.; GOODARZI, M. (2008) Effect of expulsion on peak load and energy absorption of low carbon resistance spot welds. Science and Technology of Welding and Joining, v. 13, n. 1, p. 39–43.

POURANVARI, M.; MARASHI, S. P. H. (2012), Failure Mode Transition in AISI 304 Resistance Spot Welds, Welding Journal, v. 91, p. 303-309.

RAJKUMAR, R. K.; HAMIMI, F.; CHARDE, N. (2012) Investigating the Dissimilar Weld Joints of AISI 302 Austenitic Stainless Steel and Low Carbon Steel, International Journal of Scientific and Research Publications, v. 2, n. 11.

SHAMSUL, J. B.; HISYAM, M. M. (2007) Study Of Spot Welding Of Austenitic Stainless Steel Type 304, Journal of Applied Sciences Research, v. 3, n. 11, p. 1494-1499.

SCHUBERTH, S.; SCHEDIN, E.; FROHLICH, T. H.; RATTE, E. (2008) Next generation vehicle engineering guidelines for stainless steel in automotive applications, Proceedings of the 6th STAINLESS STEEL SCIENCE AND MARKET CONFERENCE. Helsinki, Finland. June 10–13.

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