Investigation of the Effect of Friction Stir Spot Welding of BH Galvanized Steel Plates on Process Parameters and Weld Mechanical Properties
This study evaluates the effect of Friction Stir Spot Welding (FSSW) pin shape on overlapping galvanized BH plates. FSSW is done at 4, 6 and 9 seconds dwell time at two rotational speeds (1500 and 1800 rpm) by tools with 10 and 14 mm shoulder diameter. Microstructural properties (OM and SEM), Vickers micro hardness and tension are tested on the welded spots. By increasing shoulder diameter from 10 to 14 mm to joint two plates, microstructural grain size decreases by 23% in SZ and 15% in TMAZ. Maximum fracture increases as shoulder diameter increases to 32%.
Keywords:Friction Stir Spot Welding, Galvanized steel BH, Pin Shape
S. W. Baek, D. H. Choi, C. Y. Lee, B. W. Ahn, Y. M. Yeon, K. Song, S. B. Jung, “Microstructure and mechanical properties of friction stir spot welded galvanized steel”, The Japan Institute of Metals, pp.1044-1050, 2010 DOI: https://doi.org/10.2320/matertrans.M2009337
J. M. Piccini, H. G. Svoboda , “Effect of pin length on Friction Stir Spot Welding (FSSW) of dissimilar aluminum-steel joint”, Procedia Materials Science, Vol. 9, pp. 504-513, 2015 DOI: https://doi.org/10.1016/j.mspro.2015.05.023
A. Gerlich, P. Su, T. H. North, “Tool penetration during friction stir spot welding of Al and Mg alloyes”, Journal of Materials Science,Vol. 40, pp. 6473-6481, 2005 DOI: https://doi.org/10.1007/s10853-005-1568-9
M. Awang, “Simulation of Friction Stir Spot Welding (FSSW) process: Study of friction phenomena”, PhD thesis, College of Engineering and Mineral Resources, West Virginia University, 2007.
J. Zhang, Y. Shen, B. Li, H. Xu, X. Yao, B. Kuang, J. Gao , “Numerical simulation and experimental investigation on friction stir welding of 6061-T6 aluminum alloy”, Materials & Design, Vol. 60, pp. 94-101, 2014 DOI: https://doi.org/10.1016/j.matdes.2014.03.043
V. X. Tran, J. Pan, T. Pan, “Effects of processing time on strengths and fracture modes of dissimilar spot friction welds between aluminum 5754-O and 7075-T6 sheets”, Journal of Materials Processing Technology, Vol. 209, pp. 3724-3739, 2008 DOI: https://doi.org/10.1016/j.jmatprotec.2008.08.028
Y. Tozaki, Y. Uematsu, K. Tokaji, “Effect of tool geometry on microstructure and static strength in friction stir spot welded aluminium alloys”, International Journal of Machine Tools & Manufacture, Vol. 47, pp. 2230-2236, 2007 DOI: https://doi.org/10.1016/j.ijmachtools.2007.07.005
M. Awang, V. H. Mucino, Z. Feng, S. A. David, “Thermo-mechanical modeling of Friction Stir Spot Welding (FSSW) process use of an explicit adaptive meshing scheme”, Science and Engineering, Vol. 01, pp. 1251-1256, 2006 DOI: https://doi.org/10.4271/2006-01-1392
S. Venukumar, S. Yalagi, S. Muthukumaran, “Comparison of microstructure and mechanical properties of conventional and refilled friction stir spot welds in AA 6061-T6 using filler plate”, Transactions of Nonferrous Metals Society of China, Vol. 23, No. 10, pp. 2833-2842, 2013 DOI: https://doi.org/10.1016/S1003-6326(13)62804-6
H. Badarinarayan, Y. Shi, X. Li, K. Okamoto,”Effect of tool geometry on hook formation and static strength of friction stir spot welded aluminum 5754-O Sheets”, International Journal of Machine Tools & Manufacture, Vol. 49, pp. 814-823, 2009 DOI: https://doi.org/10.1016/j.ijmachtools.2009.06.001
A. Gerlich, P. Su, M. Yamamoto, T. H. North, “Effect of welding parameters on the strain rate and microstructure of friction stir spot welded 2024 aluminum alloy”, Journal of Material Science, Vol. 42, pp. 5589-5601, 2007 DOI: https://doi.org/10.1007/s10853-006-1103-7
C. Gao, R. Gao, Y. Ma , “Microstructure and mechanical properties of friction spot welding aluminium–lithium 2A97 alloy”, Materials & Design, Vol. 83, No. 15, pp.719-727, 2015 DOI: https://doi.org/10.1016/j.matdes.2015.06.013
J. M. Piccini, H. G. Svoboda, “Effect of the tool penetration depth in Friction Stir Spot Welding (FSSW) of dissimilar aluminum alloys”, Procedia Materials Science, Vol. 8, pp. 868-877, 2015 DOI: https://doi.org/10.1016/j.mspro.2015.04.147
G. Buffa, L. Fratini, M. Piacentini, “On the influence of tool path in friction stir spot welding of aluminum alloys”, Journal of Materials Processing Technology, Vol. 208, pp. 309-317, 2008 DOI: https://doi.org/10.1016/j.jmatprotec.2008.01.001
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