Abstract
Defects such as porosity, underfill, and magnesium loss occur during laser welding of 5182 aluminum alloy. To compensate for these problems, AA5356 filler wire was used in our present work. To investigate the weld characteristics of the filler wire, experiments were performed with laser power, welding speed, and wire feed rate as the control variables. Bead appearance, bead shape, penetration depth, tensile strength, and the Erichsen ratio were observed as weld characteristic variables. The range of full penetration was reduced as laser power decreased and welding speed and wire feed rate increased. Without filler wire, full penetration was formed under all conditions. However, with filler wire, the range of conditions necessary to form full penetration was reduced as the wire feed rate increased because the heat input was used to melt both of the filler wire and the base metal. Filler wire increased the tensile strength and the Erichsen ratio. Using analysis of variance (ANOVA), it was shown that laser power had a greater influence on tensile strength and the Erichsen ratio among the three control variables. It was also found that tensile strength was closely related to the Erichsen ratio because the coefficient of correlation was 0.899.
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References
Irving, B. (2000). The auto industry gears up for aluminum. Welding J. 79,11, 63–68.
Leong, K. H., Sabo, K. R., Altshuller, B., Wilkinson, T. L. and Albright, C. E. (1999). Laser bean welding of 5182 aluminum alloy sheet. J. Laser Applications 11,3, 109–118.
Mather, G. (2002). The Welding of Aluminum and Its Alloy. Woodhead Publishing Ltd. U.K.
Naeem, M. and Jessett, R. (1998). Aluminium tailored blank welding with and without wire feed, using high power continuous wave Nd:YAG laser. SAE Conf. Proc. P, 334, 247–256.
Park, S. H. (2003). Design of Experiment. 2nd edn. Minyoung-Sa. Seoul. 123–134.
Pastor, M., Zhao, H., Martukanitz, R. P. and Debroy, T. (1999). Porosity, underfill and magnesium loss during continuous wave nd:yag laser welding of thin plates of aluminum alloys 5182 and 5754. Welding J. 78,6, 207s–216s.
Salminen, A. S. and Kujanpää, V. P. (2003). Effect of wire feed position on laser welding with filler wire. J. Laser Applications 15,1, 2–10.
Seto, N., Katayama, S. and Matsunawa, A. (2000). Porosity formation mechanism and suppression procedure in laser welding of aluminum alloys. J. Japan Welding Society 18,2, 243–255.
Yoon, J. W. (2000). Laser welding of aluminum alloys. J. Korean Welding Society 18,2, 147–153.
Yoon, J. W., Lee, Y. S., Lee, K. D. and Park, K. Y. (2003). Effect of filler wire composition on the solidification cracking of 6061 aluminum alloy laser welds. Proc. 2003 Fall Annual Meetings of Korean Welding Society, 41, 98–100.
Xijing, W., Katayama, S. and Matsunawa, A. (1997). Character of melting and evaporation in laser beam welding of two aluminum alloys. Welding J. 76,2, 275s–282s.
Zhao, H., White, D. R. and Debroy, T. (1999). Current issues and problems in laser welding of automotive aluminum alloys. Int. Materials Reviews 44,6, 238–266.
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Park, Y.W., Yu, J. & Rhee, S. A study on the weld characteristics of 5182 aluminum alloy by Nd:Yag laser welding with filler wire for car bodies. Int.J Automot. Technol. 11, 729–736 (2010). https://doi.org/10.1007/s12239-010-0086-1
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DOI: https://doi.org/10.1007/s12239-010-0086-1