Studies on Distortion of Dissimilar Thin Sheet Weld Joints Using Laser Beam Welding

Authors: K. Kalaiselvan, A. Elango

Abstract:

To achieve reliable welds with minimum distortion for the fabrication of components in aerospace industry laser beam welding is attempted. Laser welding can provide a significant benefit for the welding of Titanium and Aluminium thin sheet alloys of its precision and rapid processing capability. For laser welding, pulse shape, energy, duration, repetition rate and peak power are the most important parameters that influence directly the quality of welds. In this experimental work for joining 1mm thick TI6AL4V and AA2024 alloy and JK600 Nd:YAG pulsed laser units used. The distortions at different welding power and speed of titanium and aluminium thin sheet alloys are investigated. Test results reveal that increase in welding speed increases distortion in weldment

Keywords: Laser Beam Welding, Titanium, Aluminium alloy sheets and distortion.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1099531

References:

[1] G. Dieter, Engineering Design , “A materials and processing approach”, (2000). McGraw Hill, NY.
[2] K. Kalaiselvan, A. Elango, N.M. Nagarajan, N. Mathiazhagan, “Laser Beam Welding of Ti/Al Dissimilar Thin Sheets - A Literature Review”, World Academy of Science, Engineering and Technology, International Journal of Mechanical, Aerospace, Industrial and Mechatronics Engineering Vol:8 No:10, 2014.
[3] K. Kalaiselvan, A. Elango, N.M. Nagarajan, “Effect of Laser Welding Properties on Ti/Al Dissimilar Thin Sheets – A Review”, World Academy of Science, Engineering and Technology International Journal of Mechanical, Aerospace, Industrial and Mechatronics Engineering Vol:8 No:10, 2014,
[4] R. W. Messler (Jr.), “Principles of Welding”, (1999). Processes Physics, chemistry and Metallurgy, Wiley International, NY.
[5] Michaleris P. and Debiccari A, “Prediction of welding distortion”, (1997). Welding Journal, 76: 172−181.
[6] Aslezaeem M., Nami MR. and Kaduvar MH, “Prediction of welding buckling distortion in a thin wall aluminum T joint”, (2007). Computational Materials Science, 38: 588−594.
[7] Dhingra AK. and Murphy CL, “Numerical simulation of weldinginduced distortion in thin-walled structures”, (2005). Science and Technology of Welding and Joining, 10(5): 528−536.
[8] Papazoglouv J. and Masubchik, “Analysis and control of distortion in welded aluminum structures”, (1978). Welding Journal, 57(9): 251−262.
[9] Li Zhang., Gobbil., Norris I., Zolotosky S. and Richter KH, “Laser welding technique for titanium alloy sheet”, (1997). Materials Processing Technology, 65(1/3): 203−208.
[10] HE Xiao-dong., ZHANG Jian-xun., GONG Shui-li. and LI J H, “Residual stress measurements with the hole-drilling technique in the joints by the laser and TIG welding for a thin plate of titanium alloy”, (2003). Material Science, (12): 7−10. (in Chinese).
[11] Masubuchi K, “Prediction and control of residual stresses and distortion in welded structures”, (1996). Trans JWRI, 25(2): 53−67.
[12] Marya M. and Edwards GR, “A study on the laser forming of near-alpha and metastable beta titanium alloy sheets”, (2001). Journal of Materials Processing Technology,108: 376−383.
[13] Terasakit. and Yamakawa D, “Study of welding deformation and welding residual stress generated in pure titanium joints”, (2003). Welding International, 17(11): 864−869.
[14] Michaleris P. and Sun X, “Finite element analysis of thermal tensioning techniques mitigating weld buckling distortion”, (1997). Welding Journal, 76(11): 451−457.
[15] Park JU., Lee HW. and Bang HS, “Effect of mechanical constraints on angular distortion of welding joints”, (2002). Science and Technology of Welding and Joining, 7(4): 232−239.
[16] K. Kalaiselvan, A. Elango, N. M. Nagarajan, “Comparative Studies on Dissimilar Metals thin Sheets Using Laser Beam Welding - A Review”, World Academy of Science, Engineering and Technology International Journal of Mechanical, Aerospace, Industrial and Mechatronics Engineering Vol:8 No:10, 2014.
[17] K. Kalaiselvan, A. Elango, N. M. Nagarajan, N. Mathiyazagan, “Studies on Ti/Al Sheet Joint Using Laser Beam Welding – A Review”, World Academy of Science, Engineering and Technology International Journal of Chemical, Nuclear, Metallurgical and Materials Engineering Vol:8 No:4, 2014.
[18] Miyasaka F., Yamane Y. and Ohji T, “Development of circumferential TIG welding process model: A simulation model for welding of pipe and plate”, (2005). Science and Technology of Welding and Joining, 10(5): 521−527.
[19] Alfieri V., Caiazzo F. and Sergi V, “Issues in disk-laser key-hole welding of 2024 aluminium alloy”, (2012) Frontiers in Aerospace Engineering I (I), 36-44.
[20] Barti J. and Baranck M, “Emissivity of aluminiumand its importance for radiometric measurement”, (2004). Measurements of Physical Quantities 4(3), 31-36.
[21] Kreimeyer M., Wangner F. and Vollertsen F, “Laser processing of aluminium-titanium-tailored blanks”, (2005).Opt.laser Eng.43.1021- 1035.