Taguchi Optimization of MIG Welding Parameters Affecting Tensile Strength of C20 Welds

  IJETT-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
© 2015 by IJETT Journal
Volume-26 Number-1
Year of Publication : 2015
Authors : Diganta Kalita, Parimal Bakul Barua
DOI :  10.14445/22315381/IJETT-V26P209


Diganta Kalita, Parimal Bakul Barua"Taguchi Optimization of MIG Welding Parameters Affecting Tensile Strength of C20 Welds", International Journal of Engineering Trends and Technology (IJETT), V26(1),43-49 August 2015. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group

The objective of this research work is to investigate the effect of the three process parameters of Metal Inert Gas Welding (MIG), welding current, voltage and shielding gas flow rate on tensile strength of welded joints having Grade C20 Carbon Steel as parent metal and ER70S-4 electrode. An experiment has been designed using Taguchi’s Orthogonal Array L9, taking welding current, voltage and shielding gas flow rate as factors having three levels each. The selected levels for welding current are 170 A, 200 A, 230 A and for voltage are 20 V, 25 V, 30 V and for shielding gas flow rate (CO2) are 8 lit/min, 12 lit/min, 16 lit/min. The experiments were conducted using TORNADO MIG 400 welding machine with three repetitions. ANOVA analysis of the experimental results shows welding current and welding voltage have significant effect whereas gas flow rate has insignificant effect on tensile strength of the weld. The optimal set of process parameters for optimal tensile strength (475.87 N/mm2) found to be are: 200 A welding current, 30 V welding voltage and 8 lit/min gas flow rate. The effect of shielding gas flow rate being found insignificant, kept at the most economic level (8 lit/min).


[1] Satyaduttsinh P. Chavda, Jayesh V.Desai and Tushar M.Patel , ?A Review on Optimization of MIG Welding Parameters using Taguchi‘s DOE Method, International Journal of Engineering and Management Research, vol.4(1), pp. 16-21, February 2014.
[2] Deepak Kumar and Sandeep Jindal, ?Optimization of Process Parameters of Gas Metal ARC Welding by Taguchi‘s Experimental Design Method, International Journal of Surface Engineering & Materials Technology, vol. 4 (1), pp. 24-27, January-June 2014.
[3] Sudesh Verma and Rajdeep Singh, ?Optimization of Process Parameters of Metal Inert Gas Welding By Taguchi Method On CRC Steel IS 513 GR ?D‘‘, International Journal of Advance Research In Science And Engineering IJARSE, vol. 3 (9), pp. 187-197, September 2014.
[4] Mallikarjun Kadani and DR. G. K. Purohit, ?Developing A Bead Geometry Based Criterion For Selection Of Process Parameters Of Metal Inert Gas Welding Using Taguchi Techniques, Journal of Information , Knowledge and Research in Mechanical Engineering, Vol.3 (1), pp. 589-597, November 2013- October 2014.
[5] Chandresh. N. Patel and Sandip Chaudhary, ?Parametric Optimization of Weld Strength of Metal Inert Gas Welding and Tungsten Inert Gas Welding By Using Analysis of Variance and Grey Relational Analysis, International Journal of Research in Modern Engineering and Emerging Technology, Vol.1 (3), pp. 48-56, April 2013.
[6] B. Vishwakarma, M. Verma, and T. K. Mishra, ?Investigation of Welding Parameters on Mechanical Properties of Different Welding Joints of Mild Steel, International Journal on Mechanical Engineering and Robotics (IJMER), Vol.1 (1), pp. 23-27, 2013.
[7] Ajay N. Boob and G. K.Gattani, ?Study on Effect of Manual Metal Arc Welding Process Parameters on Width of Heat Affected Zone (Haz) For MS 1005 Steel, International Journal of Modern Engineering Research (IJMER), Vol. 3 (3), pp. 1493-1500 May-June 2013.
[8] Vikram Singh, ?An Investigation for Gas Metal Arc Welding optimum Parameters of Mild Steel AISI 1016 using Taguchi Method?, International Journal of Engineering and Advanced Technology (IJEAT),Vol. 2 (6), pp. 407-409, August 2013.
[9] U. S. Patil and M. S. Kadam, ?Effect of Welding Process Parameters in MMAW for Joining Of Dissimilar Metals and Parameter Optimization Using Artificial Neural Fuzzy Interface System?, International Journal of Mechanical Engineering and Technology, vol. 4 (2), pp.79-85, April 2013.
[10] S. V. Sapakal and M. T. Telsang, ?Parametric Optimization Of MIG Welding Using Taguchi Design Method?, International Journal of Advanced Engineering Research and Studies, Vol.1 (4), pp. 28–30, July- September 2012.
[11] R. Satish, B. Naveen and V. S. Rao, ?Process Parameter Optimization of Dissimilar Pipe Joints Using GTAW, International Journal of Engineering Research and Applications (IJERA), Vol. 2 (3), pp. 2525-2530, 2012.
[12] L. Suresh Kumar, S. M. Verma, P. Radhakrishna Prasad, P. Kiran kumar and T. Siva Shanker, ?Experimental Investigation for Welding Aspects of AISI 304 & 316 by Taguchi Technique for the Process of TIG & MIG Welding?, International Journal of Engineering Trends and Technology, vol. 2 (2), pp. 28-33, 2011.
[13] Yunhe Welding Materials Co. LTD. Website [online], Available: http://en.czyunhe.cn/products_detail/&productId=87572d bd-4cd8-4f5d-a813-e9a8c0906d11.html.
[14] K. Mahadevan and K. Balaveera Reddy, Design Data Hand Book, 3rdEdition, CBS Publishers and Distributors, Delhi, 1987, pp. 418
[15] P. J. Ross , Taguchi Techniques for Quality Engineering, 1st edition, McGraw-Hill Book Company, New York , 1988, pp. 118-124

MIG Welding, Taguchi Technique, Tensile Strength.