Optimization of Process Parameters for Friction Stirs Welding of Aluminium Alloy Al 6061

Abstract:

In the present method the effect of welding speed, axial force, tool rotational speed and shoulder penetration on the mechanical properties of Aluminium alloy 6061 butt joint produced by Friction Stir Welding (FSW) is analyzed. The mechanical behavior properties like Yield Strength, Tensile Strength and % of Elongation has been tested using 5 mm thick plate. The tool used for conducting the experiment was High Speed Steel (HSS). Tensile Strength, Yield Strength and Percentage of Elongation of FSW Al alloy 6061 has been evaluated under different processing condition using Taguchi’s design. The optimum results had been obtained using main effects plot using S/N ratio values. Tool rotation speed has been found dominant factor for Tensile Strength followed by feed and shoulder penetration. Shoulder diameter shows the minimal effect on Tensile Strength compared to other parameters.

• Periodical: Applied Mechanics and Materials (Volumes 766-767)
• Pages: 721-726
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.766-767.721
• Online since: June 2015
• Authors: V. Abraham Boniface, A. Joseph Rijul Raj
• Keywords: % of Elongation, Al6061 Aluminium Alloy, Tensile Strength, Yield Strength

References

[1] Živković, A., Influence of Friction Stir Welding Tool Geometry on Properties of Welded Joint of Alloys Al 2024 T351 (in Serbian), Ph. D. thesis, Faculty of Mechanical Engineering, University of Belgrade, Belgrade, Serbia, (2011).

[2] Pouya Bahemmatet al (2011), Study on dissimilar friction stir butt welding of AA7075-Oand AA2024-T4 considering the manufacturing limitation, The Int Journal of Adv. Manu. Techn, Vol 59, Issue 9-12, pp.939-953.

DOI: 10.1007/s00170-011-3547-4

[3] Edward G. Cole et al, Stability of the friction stir welding process in presenceof workpiece mating. The Int. Journal of Adv. Manufacturing Tech., 2012, Volume 63, Issue 5-8, pp.583-593.

[4] Rajakumar S, Balasubramanian V (2011) Predicting tensilestrength, hardness and corrosion rate of friction stir weldedAA 6061–T6 al. alloy joints. Mat. & Design, Vol. 32, Issue. 52878-2890.

DOI: 10.1016/j.matdes.2010.12.025

[5] Elangovan Ket al (2009) Predictingtensile strength of friction stir welded AA6061 aluminium alloy joints by a mathematical model. Materials and Design, Volume 30, issue 1, pp.188-193.

DOI: 10.1016/j.matdes.2008.04.037

[6] Kim JK, Lee BJ, Lee BH, Kim YH, Kim KY (2009) Intergranular Segregation of Cr in Ti-stabilized low-Cr ferritic stainless steel. ScriptaMater. v. 61, p.1133.

DOI: 10.1016/j.scriptamat.2009.08.045

[7] E.T. Akinlabi, A. Els-Botes, and H. Lombard. Effect of tooldisplacement on defect formation in friction stir welding of aluminiumand copper,. In Proceedings of the 8th International Friction StirWelding Symposium, Hamburg, Germany, May 18 – 20, (2010).

[8] Muhsin J.J., Moneer H. Tolephih, and Muhammed A. M (2012).

[9] P. JanakiRamuluetal., (2012)Internal defect and process parameter analysisduring friction stir welding of Al 6061 The Int. Journal of Adv. Manufacturing Tech. Vol 65, Issue 9-12, pp.1515-1528.

DOI: 10.1007/s00170-012-4276-z

[10] Kanwer S. Aroraet al, Effect of process parameters on friction stir welding of aluminium alloy 2219. The Int. Journal of Adv. Manufacturing Tech., Volume50, Numbers 9-12, 2010, pp.941-952.

DOI: 10.1007/s00170-010-2560-3