Parametric Modeling of Metal Inert Gas (MIG) Welding Process using Second-Order Regression Model Analysis

E.R. Imam Fauzi, Z. Samad, M.S. Che Jamil, N.M. Nor, G.P. Boon

Abstract


Welding parameters play an important role in determining the quality of a weld joint. In this present study, an attempt was made to determine the correlation of the welding parameters and weld quality of MIG welding process using regression analysis of a full factorial design experiment. Welding speed and arc voltage were varied during the fabrication of T-joint AA 6082-T6 aluminium alloys. Weld quality was analyzed in terms of tensile strength and penetration depth. Considering all terms, a linear regression analysis was employed to develop input-output correlation. From the analysis of ANOVA, it is noticeable that welding voltage and the voltage-speed interaction significantly affect both tensile and penetration depth. The developed empirical model to predict tensile strength and penetration depth can yield nearly accurate results, where the percentage error is below 10%, within the range of design environment.

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References


G. Mathers, The Welding of Aluminium and its Alloys. England: Woodhead Publishing Limited, 2002.

A. Lakshminarayanan, V. Balasubramanian, and K. Elangovan, “Effect of welding processes on tensile properties of AA6061 aluminium alloy joints,” International Journal of Advanced Manufacturing Technology, vol. 40, pp. 286–296, 2009.

K.Y. Benyounis and A.G. Olabi, “Optimization of different welding processes using statistical and numerical approaches - A reference guide,” Advances in Engineering Software, vol. 39, pp. 483–496, 2008.

R. Koganti, C. Karas, A. Joaquin, D. Henderson, M. Zaluzec, and A. Caliskan, “Metal Inert Gas (MIG) welding process optimization for joiniong aluminium sheet material using OTC/DAIHEN equipment,” in ASME 2003 International Mechanical Engineering Congress and Exposition, Washington DC, USA, 2003, pp. 409–425.

T. Pine, M. Lee, and T. Jones, “Factors affecting torsional properties of box sections.,” Ironmarking & Steelmarking, vol. 25, pp. 205–209, 1998.

I. Kim, K. Son, Y. Yang, and P. Yaragada, “Sensitivity analysis for process parameters in GMA welding processes using a factorial design method,” International Journal of Machine Tools and Manufacture, vol. 43, pp. 763–769, 2003.

N. Murugan and R. Parmar, “Effects of MIG process parameters on the geometry of the bead in the automatic surfacing of stainless steel,” Journal of Materials Processing Technology, vol. 41, pp. 381–398, 1994.

J.P. Ganjigatti, D.K. Pratihar, and A. Roychoudhury, “Modeling of the MIG welding process using statistical approaches,” International Journal of Advanced Manufacturing Technology, vol. 35, pp. 1166–1190, 2008.

N. Murugan and V. Gunaraj, “Prediction and optimization of weld bead volume for the submerged arc process — Part 2,” Welding Research Supplement, pp. 331–338, 2000.

S. Patil and C. Waghmare, “Optimization of MIG welding parameters for improving strength of welded joints,” International Journal of Advanced Engineering Research and Studies, vol. 2, pp. 14–16, 2013.

G. Haragopal, P.V.R. Ravindra Reddy, G. Chandra Mohan Reddy, and J.V. Subrahmanyam, “Parameter design for MIG welding of Al-65032 alloy using Taguchi technique,” Journal of Scientific & Industrial Research, vol. 70, pp. 844–850, 2011.

P. Sreeraj, T. Kannan, and S. Maji, “Prediction and optimization of weld bead geometry in gas metal arc welding process using RSM and fmincon,” Journal of Mechanical Engineering Research, vol. 5, pp. 154–165, 2013.

M. Collette, “The impact of fusion welds on the ultimate strength of aluminum structures,”in 10th International Symposium on Practical Design of Ships and Other Floating Structures (PRADS), Houston, Texas, USA, 2007. doi: 66.180.169.221

F. Mazzolani, Aluminium Alloy Structures, 2nd Edition. London: Chapman & Hall, 1995.

CEN European Community for Standardization, “Eurocode 9 Design of aluminium structures. Part1-1: General structural rules. EN-1999-1-1,” Brussels, 2007.

ASTM International, “E8/E8M standard test methods for tension testing of metallic materials,” West Conshohocken, US, 2010.

American Welding Society, “ANSI/AWS A3.0-94 Standard welding terms and definitions,” Florida, US, 1999.

T. Ma and G. den Ouden, “Softening behaviour of Al–Zn–Mg alloys due to welding,” Materials Science and Engineering: A, vol. 266, pp. 198–204, 1999.

K. Easterling, Introduction to the Physical Metallurgy of Welding, 2nd Edition. Netherlands: Elsevier, 2013.

B. Das, B. Debbarma, R.N. Rai, and S.C. Saha, “Influence of Process parameters on depth of penetration of welded joint in MIG welding process,” International Journal of Research in Engineering & Technology, vol. 2, pp. 220–224, 2013.




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