Comparative Study of Gas Metal Arc Welding (GMAW) and Gas Tungsten Arc Welding (GTAW) for Aluminium Alloy 3003-H2 Using Taguchi Method

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International Journal of Research and Scientific Innovation (IJRSI) | Volume V, Issue V, May 2018 | ISSN 2321–2705

Comparative Study of Gas Metal Arc Welding (GMAW) and Gas Tungsten Arc Welding (GTAW) for Aluminium Alloy 3003-H2 Using Taguchi Method

Ram Gopal1, R.S. Jadoun2

IJRISS Call for paper

1Research Scholar, 2Professor

Department of Industrial & Production Engineering, G.B. Pant University of Agriculture & Technology, Pantnagar, Uttarakhand, India.

Abstract: A manufacturer’s often face the problem to achieve a good welded joint with the required quality due to the control of the input process parameters. The Taguchi method with L27 orthogonal array were used to find out the best settings of welding current, welding voltage, welding speed, gas flow rate and root gap. It is also the investigation of welding process parameter’s effect on the tensile strength of weld specimen were carried out by statistical technique i.e. analysis of variance (ANOVA) and Signal- to- Noise (S/N) ratio. The optimum parametric conditions were found out by Taguchi method. This investigation the presents an effective approach for the comparative study for the optimization of the process parameters using MINITAB-18. The GMAW process and the GTAW process are one of the widely used methods for the joining ferrous and non-ferrous metals. In this design of experiment method (DOE) the aluminium alloy 3003 used as base material and ER4043 used as filler wire for both welding process, also find out the percentage contribution of each input parameters.

Key words: GMAW, GTAW setup, aluminium alloy, Taguchi, L27 array, ANOVA & S/N ratio.

I. INTRODUCTION

The American Welding Society (AWS) defines the welding as “a localized coalescence of metals or non-metals produced either by heating the materials to suitable temperatures, with or without the application of pressure, or by pressure alone, and with or without the use of filler material.” Indian Standard IS: 812-1957 defines the welding as “a union between two pieces of a metal at faces rendered plastic or liquid by heat or by pressure, or both. The filler metal may be used to affect the union”. International Organization for Standards (ISO) defines the welding as “an operation by which two or more parts are united, by means of the heat or pressure, or both, in such a way that there is continuity of the nature of the material between these parts. A filler material, the melting temperature of which is of the same order as that of the parent material, may or may not be used.”