Published Jan 17, 2014
Kazi Sabiruddin Subhajit Bhattacharya Santanu Das


Gas Metal Arc Welding (GMAW) is a semi-automated process used widely for accurate welding in the fabrication industry. The selection of appropriate process parameters of GMAW is essential to obtain the desired weld quality.  In the past, much work has been done investigating a variety of workpiece and electrode material combinations. In the present work, an Analytical Hierarchy Process (AHP) based parametric optimization is tried in gas metal arc welding of C45 medium carbon steel specimens using carbon dioxide as the gas shield. The experiments were performed by varying three process parameters, weld speed, weld voltage and weld current. The AHP facilitates the selection of suitable process parameters to obtain a sound weld. In the present experimental domain, optimal conditions are evaluated to be at a weld voltage of 30 V, weld current of 160 A with a weld speed of 475.75 mm/min.


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AHP, welding, GMAW, MAG, parametric optimization

Das, S., Islam, R. & Chattopadhyay, A.B. (1997). A simple approach for on-line tool
wear monitoring using the analytical hierarchy process. Proceedings of the IMechE,
Journal of Engineering Manufacture, 211, 19-27.
Jatua, R., Sarkar, A., Nandi, S. & Das, S. (2003). On the effects of various parameters for
gas metal arc welding of steels. Proceedings of Conference on Advances and Recent
Trends in Manufacturing, Kalyani, India, 143-150.
Jaubari, M.K., Prasad, N.V., Rao, A.T., Premchander, V. & Nagaraju, J.S. (2007).
Innovative cost effective concept in GMAW process to improve/ enhance weld
aesthetics, quality and fatigue life. Indian Welding Journal, 40(1), 40-45.
Jones, L.A., Eager, T.W. & Lang, J.H. (1992). Metal transfer control in gas metal arc
welding. (Unpublished dissertation). Massachusetts Institute of Technology, USA.
Khanna, O.P. (1995). Welding technology. New Delhi: Khanna Publishers.
Kim, I.S. & Basu, A. (1998). A mathematical model of heat transfer and fluid flow in the
gas metal arc welding process. Journal of Materials Processing Technology, 77, 17-24.
Lai, X., Ji, C., Luo, X. & Deng, L. (2009). Application of AHP method of orthogonal
trial to selection of parameters in resistance spot welding. Electric Welding Machine, 49,
7-8. DOI: cnki: ISSN: 1001-2303.0.2006-09-003.
Liu, X. & Gong, S.L. (2011). Evaluation on the effect of weld shape on fatigue
performance by analytic hierarchy process, Advanced Materials Research, 146/147,
Modensi, P.J. & DeAvelar, R.C. (1999). The influence of small variations of wire
characteristics on gas metal arc welding process stability. Journal of Materials
Processing Technology, 86, 226 – 232.
Mohandas, T., Reddy, G.M. & Kumar, B.S. (1999). Heat-affected zone softening in high
strength low-alloy steels. Journal of Materials Processing Technology, 88, 264–294.
Muralidharan, C., Anantharaman, N., Balasubramanian, V. & Deshmukh, S.G. (1999).
Selection of a welding process using analytic hierarchy process. Journal of the Institution
of Engineers (India), 80, 51–54.
Nadkarni, S.V. (1996). Modern arc welding technology. New Dehli: Oxford and Indian
Book House.
Ravisankar, V., Balasubramanian, V. & Muralidharan, C. (2006). Selection of welding
process to fabricate butt joints of high strength aluminium alloys using analytic hierarchic
process., Materials & Design, 27, 373-380.
Saaty, T.L. (1977). A scaling method for priorities in hierarchical structures. Journal of
Mathematical Psychology,15(3), 234-281.
Saaty T.L. (1980). Analytic Hierarchy Process. New York: McGraw-Hill.
Saaty, T.L. (2009). An essay on how judgment and measurement are different in science
and in decision making. International Journal of the Analytic Hierarchy Process, 1(1),
Sabiruddin, K. & Das, S. (2005). Characterisation of gas metal arc welding of different
steels. Proceedings of All India Workshop on Advances in Welding Science and
Technology, Shibpur, Howrah, India.
Sabiruddin, K., Das, S. & Bhattacharya, A. (2009). Application of the analytic hierarchic
process for optimization of process parameters in GMAW. Indian Welding Journal,
42(1), 38-46.
Simpson, W. & Hughes, P.W. (2006). Industrial application of welding signatures for
real time quality assurance and process improvement, (Unpublished dissertation). School
of Electrical and Information Engineering, University of Sydney, Australia.
Vargas, L.G. (1990). An overview of the analytic hierarchy process and its applications.
European Journal of Operations Research, 48, 72–80.
Zumelzu, E., Sepulvede, J. & Ibarra, M. (1999). Influence of microstructure on the
mechanical behaviour of welded 316L SS. Journal of Materials Processing Technology,
94(1), 36–40.