To Investigate the Friction Stir Welding on Aluminum AA5754 Aluminum Alloy Using Taguchi Method
Keywords:
Frictions stir welding, Aluminum AA5754, Tensile strength, micro-hardness, ANOVAAbstract
Friction stir welding (FSW) is a contemporary solid-state welding technique to effectively and efficiently weld any combination either similar or dissimilar aluminum alloys. In FSW, a solidification structure is absent in the weld. Thus, all the flaws and defects related to the presence of brittle inter-dendritic and eutectic phases are eliminated.
This new welding technique was applied in this research work to join 3 mmthick similar aluminum alloy AA5754. The aluminum alloys of AA5XXX series are extensively used in fabrication of ship structures and in marine industries due to good corrosion-resistant property. The effect of welding speed and traverse speed on tensile strength and micro-hardness were studied using Taguchi method. Welding was done at 710 and 900 rpm welding speed and having 31.5 mm/min and 50 mm/min traverse speed. Using these parameters, four combinations were formed. Out of the combinations, best tensile strength was obtained at welding speed of 900 rpm and at traverse speed of 31.5 mm/min. The maximum tensile strength obtained was 255 MP.
References
[2]. Cedeqvist L, Andrews RE. Proc. 4th International Symposium on ‘Friction stir welding.’ Park City, UT, USA, May 2003; TWI: 1400-30.
[3]. Savolainen K, Mononen J, Saukkonen T et al. Proc. 5th International Symposium on ‘Friction stir welding.’ Metz, France, September 2004; TWI: 19.
[4]. Threadgill PL, Johnson R. Processing of Symposium on ‘Magnesium Technology.’ San Diego, CA, USA, March 2003, TMS.
[5]. Wynne BP, Davies PS, Thomas MJ et al. Proc. 7th International Symposium on ‘Friction Stir Welding.’ Awaji Island, Japan, May 2008, TWI.
[6]. Russell MJ, Threadgil PL, Thomas MJ et al. Proceeding of 11th International Conference on ‘Titanium.’ Kyoto, Japan, June 2007; Japan Institute of Metals. 1095-98.
[7]. Johnson R, Threadgill PL. Proc. 6th International Conference on ‘Trends in welding research.’ Pine Mountain, GA, USA, June 2002; TWI.
[8]. Midling OT. Proc. 4th International Conference on ‘Aluminium alloys.’ Atlanta, GA, USA, September 1994; Georgia Institute of Technology: 451-58.
[9]. Ouyuang JH, Kovacevic R. Journal of Material Engineering and Performance 2002; 11: 51-63.
[10]. Lakshminarayanan AK, Balasubramanian V. Process parameters optimization for friction stir welding of RDE-40 aluminium alloy using Taguchi technique. Transactions of Nonferrous Metals Society of China 2008; 18(3): 548-54.
[11]. Sars?lmaz F, Çayda? U. Statistical analysis on mechanical properties of friction-stirwelded AA 1050/AA 5083 couples. The International Journal of Advanced Manufacturing Technology 2009; 43(3-4): 248-55.
[12]. Delany F, WKallee S, Russell MJ. Friction stir welding of aluminium ships. International forum on welding technologies in the shipping industry (IFWT). June 2007.
[13]. Ross PJ. Taguchi Technique for Quality Engineering. New York: McGraw-Hill 1998.
[14]. Vidal C, Infante V, Pecas P et al. Application of Taguchi method in the optimization of friction stir welding parameters of an aeronautic aluminuim alloy.
[15]. Mishra RS, Mahoney MW. Friction stir welding and processing. Dpi: 10.136/ fswp, 2007.
