A Modified Model to Determine Heat Generation in the Friction Stir Welding Process

Journal of Solid Mechanics

مقاله 3، دوره 13، شماره 1، خرداد 2021، صفحه 27-36   

نوع مقاله: Research Paper

شناسه دیجیتال (DOI): 10.22034/jsm.2019.1867048.1429

نویسندگان

A Ghiasvand^* ؛ S Hasanifard؛ M Zehsaz

Department of Mechanical Engineering, University of Tabriz, Tabriz, Iran

چکیده

Friction stir welding (FSW) is a solid state bonding process in which the parts are joined together at the temperature below the melting point. In present study, a modified model was developed based on the partial sticking/sliding assumption in the tool-workpiece interface and the dependence of the thermal energy equations on the temperature-dependent yield stress to determine heat generation in FSW process that is independent from coefficient of friction. So to eliminate the dependence of the final equations on the coefficient of friction, an equation was used which the coefficient of friction was expressed as a function of workpiece yield stress. To validate the model, the FSW process was simulated by the finite element package ABAQUS and two subroutines of DFLUX and USDFLD and then the simulation results were compared with the experimental ones. The results showed that the modified model is appropriately capable of predicting the temperature and the residual stresses in the different zones of welded section.

کلیدواژه‌ها

Friction stir welding؛ Thermal model؛ Coefficient of friction؛ Yield stress؛ Numerical simulation

مراجع

[1] Thomas W., 1991, Friction stir welding, International Patent Application.
[2] Mishra R.S., De P.S., Kumar N., 2014, Friction Stir Welding and Processing: Science and Engineering, Springer.
[3] Ahmed M., 2017, Friction stir welding of similar and dissimilar AA7075 and AA5083, Journal of Materials Processing Technology 242: 77-91.
[4] Frigaard Q., Grong Q., Midling O., 2001, A process model for friction stir welding of age hardening aluminum alloys, Metallurgical and Materials Transactions A 32(5): 1189-1200.
[5] Chao Y.J., Qi X., Tang W., 2003, Heat transfer in friction stir welding—experimental and numerical studies, Journal of Manufacturing Science and Engineering 125(1): 138-145.
[6] Chen C., Kovacevic R., 2003, Finite element modeling of friction stir welding—thermal and thermomechanical analysis, International Journal of Machine Tools and Manufacture 43(13): 1319-1326.
[7] Khandkar M., Khan J.A., Reynolds A.P., 2003, Prediction of temperature distribution and thermal history during friction stir welding: input torque based model, Science and Technology of Welding and Joining 8(3): 165-174.
[8] Song M., Kovacevic R., 2003, Thermal modeling of friction stir welding in a moving coordinate system and its validation, International Journal of Machine Tools and Manufacture 43(6): 605-615.
[9] Schmidt H., Hattel J., Wert J., 2003, An analytical model for the heat generation in friction stir welding, Modelling and Simulation in Materials Science and Engineering 12(1): 143.
[10] Nandan R., 2007, Three-dimensional heat and material flow during friction stir welding of mild steel, Acta Materialia 55(3): 883-895.
[11] Schmidt H., Hattel J., 2005, Modelling heat flow around tool probe in friction stir welding, Science and Technology of Welding and Joining 10(2): 176-186.
[12] Riahi M., Nazari H., 2011, Analysis of transient temperature and residual thermal stresses in friction stir welding of aluminum alloy 6061-T6 via numerical simulation, The International Journal of Advanced Manufacturing Technology 55(1-4): 143-152.
[13] Russell M., Shercliff H., 1999, Analytical modelling of microstructure development in friction stir welding, 1st International Symposium on Friction Stir Welding, Thousand Oaks, California.
[14] Colegrove P.A., 2001, 3 Dimensional Flow and Thermal Modelling of the Friction Stir Welding Process, University of Adelaide, Department of Mechanical Engineering.
[15] Su H., 2015, Numerical modeling for the effect of pin profiles on thermal and material flow characteristics in friction stir welding, Materials & Design 77: 114-125.
[16] Amini S., Amiri M., Barani A., 2015, Investigation of the effect of tool geometry on friction stir welding of 5083-O aluminum alloy, The International Journal of Advanced Manufacturing Technology 76(1-4): 255-261.
[17] Meyghani B., 2017, Developing a finite element model for thermal analysis of friction stir welding by calculating temperature dependent friction coefficient, 2nd International Conference on Mechanical, Manufacturing and Process Plant Engineering, Springer.
[18] Hibbit H., Karlsson B., Sorensen E., 2012, ABAQUS user manual, version 6.12, Simulia, Providence, RI.
[19] Aval H.J., Serajzadeh S., Kokabi A., 2011, Evolution of microstructures and mechanical properties in similar and dissimilar friction stir welding of AA5086 and AA6061, Materials Science and Engineering A 528(28): 8071-8083.
[20] Nandan R., 2006, Numerical modelling of 3D plastic flow and heat transfer during friction stir welding of stainless steel, Science and Technology of Welding and Joining 11(5): 526-537.
[21] Staron P., 2004, Residual stress in friction stir-welded Al sheets, Physica B: Condensed Matter 350(1-3): E491-E493.
[22] Khandkar M.Z.H., 2006, Predicting residual thermal stresses in friction stir welded metals, Journal of Materials Processing Technology 174(1-3): 195-203.
[23] Feng Z., 2007, Modelling of residual stresses and property distributions in friction stir welds of aluminium alloy 6061-T6, Science and Technology of Welding and Joining 12(4): 348-356.
[24] Dalle Donne C., Wegener J., Pyzalla A., Buslaps T., 2001, Investigation of residual stressesin friction stir welds, Third International Symposium on Friction Stir Welding, Kobe, Japan, TWI, Cambridge.