The Role of Vertical Tool Load on the Joint Properties of Friction Stir Spot Welded Brass Alloy

Year 2020, Volume: 24 Issue: 6, 1314 - 1320, 01.12.2020

Zafer Barlas , Uğur Özsaraç

Abstract

This study consisted of the effects of vertical tool load on failure value in FSSW of CuZn30. Tensile-shear test, microstructural examination, microhardness, vertical tool load, and temperature measurements were utilized to reveal the influence of FSSW process. According to the results, the tool load plays a key role on the features of joint. Not only low tool load, but also excessive load used leads to drop in the tensile-shear values. The spot weld region was characterized by stir and heat-affected zones and these have various microhardness values ranging from 108.2 HV to 150.2 HV. The temperature measurements show that the peak temperature increased with increasing tool load value..

Keywords

FSSW, brass alloy, vertical tool load, tensile-shear failure load

References

• Z. Zhang, X. Yang, J. Zhang, G. Zhou, X. Xu, B. Zou, “Effect of welding parameters on microstructure and mechanical properties of friction stir spot welded 5052 aluminum alloy”, Materials and Design, vol. 32, no. 8–9, pp. 4461–4470, 2011.
• S. F Tebyani, K. Dehghani, “Effects of SiC nanopowders on the mechanical properties and microstructure of interstitial free steel joined via friction stir spot welding”, Materials and Design, vol. 90, pp. 660–668, 2016.
• Z. Shen, Y. Ding & A. P. Gerlich, “Advances in friction stir spot welding”, Critical Reviews in Solid State and Material Sciences, pp. 1–79, 2019.
• M. Li, C. Zhang, D. Wang, L. Zhou, D. Wellmann and Y. Tian, “Friction Stir Spot Welding of Aluminum and Copper: A Review”, Materials, vol. 13, no. 156, pp. 1–23, 2020.
• C. Jonckheere, B. D. Meester, C. Cassiers, M. Delhate, A. Simar, “Fracture and mechanical properties of friction stir spot welds in 6063-T6 aluminum alloy”, International Journal of Advanced Manufacturing Technology, vol. 62, pp. 569–575, 2012.
• Y. Tozaki, Y. Uematsu, K. Tokaji, “Effect of tool geometry on microstructure and static strength in friction stir spot welded aluminium alloys”, International Journal of Machine Tools and Manufacture, vol. 47, no. 15, pp. 2230–2236, 2007.
• R. Sarkar, T. K. Pal, and M. Shome, “Microstructures and properties of friction stir spot welded DP590 dual phase steel sheets”, Science and Technology of Welding and Joining, vol. 19, pp. 436–442, 2014.
• C .C. P Mazzaferro, T. S. Rosendo, M. A. D Tier, J. A. E. Mazzaferro, J. F. Dos Santos, T. R. Strohaecker, “Microstructural and Mechanical Observations of Galvanized TRIP Steel after Friction Stir Spot Welding”, Materials and Manufacturing Processes, vol. 30, pp. 1090–1103, 2015.
• A. K. Lakshminarayanan, V. E. Annamalai, K. Elangovan, “Identification of optimum friction stir spot welding process parameters controlling the properties of low carbon automotive steel joints”, Journal of Materials Research and Technology, vol. 4, no. 3, pp. 262–272, 2015.
• Z. Barlas, “Weldability of CuZn30 Brass/DP600 Steel Couple by Friction Stir Spot Welding” Acta Physica Polonica A, vol. 132, pp. 991–993, 2017.
• Z. Barlas, “Effect of friction stir spot weld parameters on Cu/CuZn30 bimetal joints”, International Journal of Advanced Manufacturing Technology, vol. 80, pp. 161–170, 2015.
• F. A. Garcia-Castillo, L. A. Reyes, C. Garza, O. E. Lopez-Botello, G. M. Hernandez-Munoz, and P. Zambrano-Robledo, “Investigation of Microstructure, Mechanical Properties, and Numerical Modeling of Ti6Al4V Joints Produced by Friction Stir Spot Welding”, Journal of Materials Engineering and Performance, vol. 29, no. 6, pp. 4105–4116, 2020.