Abstract
Laser welding assisted by a cold filler wire (LWCFW) and hybrid laser–gas metal arc (HLGMA) welding were applied to execute the welding of 6.63-mm-thick high-strength steel (HSS) plates. The corresponding hardness distribution, tensile strength, and micrographs of the welded HSS were experimentally obtained. Results show that LWCFW can achieve a good weld quality without the groove preparation that is usually required in HLGMA welding. A narrower fusion zone and heat-affected zone can be achieved by LWCFW as compared to HLGMA welding. However, the size of the gap in a butt joint in LWCFW is limited. It was found that when a gap of about 1 mm is used in joining 6.63-mm-thick plates in a square butt joint with 4 kW of fiber laser power and a wire diameter of 0.9 mm, an acceptable weld quality could be achieved.
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References
Duley WW (1998) Laser welding. Wiley, New York
Shariff T, Cao X, Chromik RR, Wanjara P, Cuddy J, Birur A (2012) Effect of joint gap on the quality of laser beam welded near-β Ti-5333 alloy with the addition of Ti-6Al-4V filler wire. J Mater Sci 47:866–875
Aalderink BJ, Pathiraj B, Aarts RGKM (2010) Seam gap bridging of laser based processes for the welding of aluminum sheets for industrial applications. Int J Adv Manuf Technol 48:143–154
Dilthey U, Fuest D, Scheller W (1995) Laser welding with filler wire. Opt Quant Electron 27:1181–1191
Roman JM, Kechemair D, Ricaud JP (1994) CO2 laser welding of very large thickness materials with wire filler. Weld Int 8(5):376–379
Shi G, Hilton P (2005) A comparison of the gap bridging capability of CO2 laser and hybrid CO2 laser MAG welding on 8mm thickness C-Mn steel plate. 58th Annual Assembly and International Conference of International Institute of Welding, 14–15 July, 2005, Prague, Czech Republic
Sun Z, Kuo M (1999) Bridging the joint gap with wire feed laser welding. J Mater Process Technol 87:213–222
Xiao R, Chen K, Zuo T, Ambrosy G, Hűqel H (2002) Influence of the wire addition direction in CO2 laser welding of aluminum. Proc SPIE Int Soc Opt Eng 4915:128–137
Yang D, Li X, He D, Nie Z, Huang H (2012) Optimization of weld bead geometry in laser welding with filler wire process using Taguchi’s approach. Optics Laser Technol 44(7):2020–2025
Bailey N, Coe FR, Gooch TG, Hart PHM, Jenkins N, Pargeter RJ (2004) Welding steels without hydrogen cracking, 2nd edn. Woodhead Publishing Limited, Abington
Li KH, Zhang YM, Xu P, Yang FQ (2008) High-strength steel welding with consumable double-electrode gas metal arc welding. Weld J 87(3):57–64
Partin K, Findley KO, Van Tyne CJ (2010) Microstructural and alloy influence on the low-temperature strengthening behavior of commercial steels used as plates. Mater Sci Eng, A 527:5143–5152
Kong F, Kovacevic R (2012) Development of a comprehensive process model for hybrid laser-arc welding. In: Kovacevic R (ed) Welding processes. Intech, New York
Acknowledgments
The financial support of NSF grant no. IIP-1034652 is acknowledged. The authors would like to thank Mr. Andrew Socha, a research engineer at the Research Center for Advanced Manufacturing of Southern Methodist University, for his assistance in performing the experiments.
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Doc. IIW-2386, recommended for publication by Commission IV “Power Beam Processes”
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Kong, F., Liu, W., Ma, J. et al. Feasibility study of laser welding assisted by filler wire for narrow-gap butt-jointed plates of high-strength steel. Weld World 57, 693–699 (2013). https://doi.org/10.1007/s40194-013-0068-9
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DOI: https://doi.org/10.1007/s40194-013-0068-9