Abstract
Friction stir welding is a relatively novel solid state method which produces ultra fine-grained microstructure and promoted mechanical properties due to the severe plastic deformation induced during welding. These features, of course, would be obtained if the welding parameters have been justified so that the welding zone becomes free of any defect specially tunnel cavity. This defect was primarily caused by an insufficient heat input during welding. In this study, a mathematical model has been presented to estimate the heat input generation during welding pertaining to the frictional work dissipated between the tool/workpiece interface, and moreover, the heat produced by the mechanical stirring of the plastically deformed material around the pin. The aim was to correlate the heat input generation and the tunnel void area. Aluminum plates with commercial purity were used for experimental efforts. During friction stir welding, a thermal camera was utilized to measure the maximum temperature of the material. After welding, samples cut through the transverse direction and examined for the area of tunnel cavity, and the extent of thermo-mechanically affected zone, as well. Comparison among the tunnel cavity areas with the heat input generations showed that to eliminate the tunnel cavity, at least a minimum heat input of about 800 J mm−1 was required.
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References
Thomas WM, Nicolas ED, Needham JC, Murch MG, Templesmith P, Dawes CJ (1991) Int Patent Application No PCT/GB92/02203
Kawasaki T, Makino T, Todori S, Takai H, Ezumi M, Inada Y (2000) Application of friction stir welding to the manufacturing of next generation A-train type rolling stock. Proceedings of 2nd International Symposium on Friction Stir Welding Gothenburg Sweden
Lohwasser D (2000) Application of friction stir welding for aircraft industry, Proceedings of 2nd Int Symp on FSW Gothenburg Sweden
Zucchi F, Trabanelli G, Grassi V (2001) Pitting and stress corrosion cracking resistance of friction stir welded AA 5083. Mater Corros 52:853–859
Wu H, Chen YC, Strong D, Prangnell P (2015) Stationary shoulder FSW for joining high strength aluminum alloys. J Mater Process Technol 221:187–196
Paidar M, Khodabandeh A, Lali Sarab M, Taheri M (2015) Effect of welding parameters (plunge depths of shoulder, pin geometry, and tool rotational speed) on the failure mode and stir zone characteristics of friction stir spot welded aluminum 2024-T3 sheets. J Mech Sci Technol 29(11):4639–4644
Thomas WM, Wiesner CS, Marks DJ, Staines DG (2009) Conventional and bobbin friction stir welding of 12% chromium alloy steel using composite refractory tool materials. Sci Technol Weld Join 14(3):247–253
Li JQ, Liu HJ (2013) Characteristics of the reverse dual-rotation friction stir welding conducted on 2219-T6 aluminum alloy. Mater Des 45:148–154
Kush PM, Vishvesh JB (2016) Effects of tool pin design on formation of defects in dissimilar friction stir welding. Procedia Technol 23:513–518
Mehta M, Reddy GM, Rao AV, De A (2015) Numerical modeling of friction stir welding using the tools with polygonal pins. Defence Technol 11:229–236
Radisavljevic IZ, Zivkovic AB, Grabulov VK, Radovic NA (2015) Influence of pin geometry on mechanical and structural properties of butt friction stir welded 2024-T351 aluminum alloy. Hem Ind 69(3):323–330. https://doi.org/10.2298/HEMIND131206020R
Su H, Wu CS, Bachmann M, Rethmeier M (2015) Numerical modeling for the effect of pin profiles on thermal and material flow characteristics in friction stir welding. Mater Des 77:114–125
Colegrove PA, Shercliff HR (2004) Two-dimensional CFD modelling of flow round profiled FSW tooling. Sci Technol Weld Join 9(6):483–492
Bozkurt Y, Boumerzoug Z (2017) Tool material effect on the friction stir butt welding of AA2124-T4 alloy matrix MMC. J Mater Res Technol https://doi.org/10.1016/j.jmrt.2017.04.001. Accessed 5 May 2017, Tool material effect on the friction stir butt welding of AA2124-T4 Alloy Matrix MMC
Kim YG, Fujii H, Tsumura T, Komazaki T, Nakata K (2006) Three defect types in friction stir welding of aluminum die casting alloy. Mater Sci Eng A 415:250–254
Chen HB, Yan K, Lin T, Chen SB, Jiang CY, Zhao Y (2006) The investigation of typical welding defects for 5456 aluminum alloy friction stir welds. Mater Sci Eng A 433:64–69
Zhang H, Lin SB, Wu L, Feng JC, Ma SL (2006) Defects formation procedure and mathematic model for defect free friction stir welding of magnesium alloy. Mater Des 27:805–809
Schmidt H, Hattel J, Wert J (2004) An analytical model for the heat generation in friction stir welding. Model Simul Mater Sci Eng 12:143–157
Khandkar MZH, Khan JA, Reynolds AP (2003) Prediction to temperature distribution and thermal history during friction stir welding: input torque based model. Sci Technol Weld J 8:165–174
Hamilton C, Dymek S, Sommers A (2008) A thermal model of friction stir welding in aluminum alloys. Int J Mach Tools Manuf 48:1120–1130
Arora A, Nandan R, Reynolds AP, DebRoy T (2009) Torque, power requirement and stir zone geometry in friction stir welding through modeling and experiments. Scr Mater 60:13–16
Gadakh VS, Kumar AK (2013) Heat generation model for taper cylindrical pin profile in FSW. Mater Res Technol J 2(4):370–375
Essa ARS, Ahmed MMZ, Mohamed AYA, El-Nikhaily AE (2016) An analytical model of heat generation for eccentric cylindrical pin in friction stir welding. J Mater Res Technol 5(3):234–240
Li P, Li F, Cao J, Ma X, Li J (2016) Constitutive equations of 1060 pure aluminum based on modified double multiple nonlinear regression model. Trans Nonferrous Met Soc China 26:1079−1095
Husain MM, Sarkar R, Pal TK, Prabhu N, Ghosh M (2015) Friction stir welding of steel: heat input, microstructure, and mechanical property co-relation. J of Materials Engineering and Performance 24(9):3673–3683
Arbegast WJ, Hartley PJ (1998) Friction stir weld technology development at Lockheed Martin Michoud space systems—an overview. In Proceedings of the Fifth International Conference on Trends in Welding Research, Pine Mountain, GA, USA, 1–5 June, p 541
Hamilton C, Dymek S, Sommers A (2010) Characteristic temperature curves for aluminum alloys during friction stir welding. Weld J 89
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This work was supported by the Vice President of education and research in Qom university of technology.
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Rasti, J. Study of the welding parameters effect on the tunnel void area during friction stir welding of 1060 aluminum alloy. Int J Adv Manuf Technol 97, 2221–2230 (2018). https://doi.org/10.1007/s00170-018-1857-5
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DOI: https://doi.org/10.1007/s00170-018-1857-5