Abstract
In recent years important innovations have been introduced in FSW technology such as, for example, the Laser assisted friction stir welding (LFSW). In this technique the FSW process is assisted, during the weld, by the pre-heating of a de-focalized laser that allows an easier advancement of the tool. This technique should lead higher welding speeds, lower clamping forces and lower residual stress. Moreover, the prediction of residual stress is a relevant, complex and still open issue for welding process design. In this work an uncoupled thermo-mechanical finite element model has been developed to predict the temperature and residual stress fields in LFSW. Both the thermal and mechanical parts of the model have been validated on the base of experimental data. The temperature field has been recorded by an infrared camera, while residual stress field has been measured by X-ray diffraction analysis. The LFSW test was conducted on 6 mm thick 5754 H111 aluminium alloy plates.
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References
W.M. Thomas, E.D. Nicholas, J.C. Needham, M.G. Murch, P. TempleSmith, C.J. Dawes, The Welding Institute, TWI, International Patent Application No. PCT/GB92/02203 and GB Patent Application No. 9125978.8, 1991
R.S. Mishraa, Z.Y. Ma, Friction stir welding and processing. Mater. Sci. Eng. R 50, 1–78 (2005)
G. Padmanaban, V. Balasubramanian, Selection of FSW tool pin profile, shoulder diameter and material for joining AZ31B magnesium alloy—an experimental approach. Mater. Des. 30, 2647–2656 (2009)
W.B. Lee, S.B. Jung, The joint properties of copper by friction stir welding. Mater. Lett. 58, 1041–1046 (2004)
J.R. Fernández, A.J. Ramirez, Dissimilar friction stir welding of steel to Ni-based alloy 625—Butt and lap joints, in Proceedings of the International Offshore and Polar Engineering Conference 2013, 2013, pp. 207–210
F. Cioffi, R. Fernández, D. Gesto, P. Rey, D. Verdera, G. González-Doncel, Friction stir welding of thick plates of aluminum alloy matrix composite with a high volume fraction of ceramic reinforcement. Compos. A: Appl. Sci. Manuf. 54, 117–123 (2013)
A. Bagheri, T. Azdast, A. Doniavi, An experimental study on mechanical properties of friction stir welded ABS sheets. Mater. Des. 43, 402–409 (2013)
M. Merklein, A. Giera, Laser assisted friction stir welding of drawable steel-aluminium tailored hybrids. Int. J. Mater. Form. 1, 1299–1302 (2008)
S.L. Campanelli, G. Casalino, C. Casavola, V. Moramarco, Analysis and comparison of friction stir welding and laser assisted friction stir welding of aluminum alloy. Materials 6, 5923–5941 (2013)
W. Xu, J. Liu, G. Luan, C. Dong, Temperature evolution, microstructure and mechanical properties of friction stir welded thick 2219-O aluminum alloy joints. Mater. Des. 30(6), 1886–1893 (2009)
M. Maeda, H. Liu, H. Fujii, T. Shibayanagi, Temperature field in the vicinity of FSW-tool during friction stir welding of aluminium alloys. Weld. World 49(3–4), 69–75 (2005)
C. Dalle Donne, E. Lima, J. Wegener, A. Pyzalla, T. Buslaps, Investigations on residual stresses in friction stir welds, in Proceedings of the Third International Symposium on Friction Stir Welding, 2001
M. Peel, A. Steuwer, M. Preuss, P.J. Withers, Microstructure, mechanical properties and residual stresses as a function of welding speed in aluminium AA5083 friction stir welds. Acta Mater. 51, 4791–4801 (2003)
C. Casavola, A. Cazzato, V. Moramarco, C. Pappalettere, Temperature field in FSW process: experimental measurement and numerical simulation, in Conference Proceedings of the Society for Experimental Mechanics Series, vol. 6, 2015, pp. 177–186
C. Casavola, A. Cazzato, V. Moramarco, C. Pappalettere, Influence of the clamps configuration on residual stresses field in friction stir welding process. J. Strain Anal. Eng. Des. 50(4), 232–242 (2015)
H. Schmidt, J. Hattel, J. Wert, An analytical model for the heat generation in friction stir welding. Model. Simul. Mater. Sci. Eng. 12(1), 143–157 (2004)
V. Soundararajan, S. Zekovic, R. Kovacevic, Thermo-mechanical model with adaptive boundary conditions for friction stir welding of Al 6061. Int. J. Mach. Tool Manuf. 45(14), 1577–1587 (2005)
M. Song, R. Kovacevic, Thermal modeling of friction stir welding in a moving coordinate system and its validation. Int. J. Mach. Tool Manuf. 43(6), 605–615 (2003)
N.S. Rossini, M. Dassisti, K.Y. Benyounis, A.G. Olabi, Methods of measuring residual stresses in components. Mater. Des. 35, 572–588 (2012)
S.K. Khanna, X. Long, W.D. Porter, H. Wang, C.K. Liu, M. Radovic, E. Lara-Curzio, Residual stresses in spot welded new generation aluminium alloys, part A—thermophysical and thermomechanical properties of 6111 and 5754 aluminium alloys. Sci. Technol. Weld. Joining 10(1), 82–87 (2013)
Swanson Analysis System Inc., The ANSYS 14.5 Users’ Manual, 2012
Y.J. Chao, X. Qi, W. Tang, Heat transfer in friction stir welding-experimental and numerical studies. J. Manuf. Sci. Eng. 125, 138–145 (2003)
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Casavola, C., Cazzato, A., Moramarco, V., Pappalettere, C. (2016). Numerical Prediction of Temperature and Residual Stress Fields in LFSW. In: Bossuyt, S., Schajer, G., Carpinteri, A. (eds) Residual Stress, Thermomechanics & Infrared Imaging, Hybrid Techniques and Inverse Problems, Volume 9. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, Cham. https://doi.org/10.1007/978-3-319-21765-9_32
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DOI: https://doi.org/10.1007/978-3-319-21765-9_32
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