IJSRST1845517 | Received : 25 March 2018 | Accepted : 08 April 2018 | March-April-2018 [ (4) 7 : 272-278] © 2018 IJSRST | Volume 4 | Issue 7 | Print ISSN: 2395-6011 | Online ISSN: 2395-602X Themed Section: Science and Technology 272 Dissimilar metal welding of J4-16cr. austenitic stainless steel with Grade 201LN austenitic stainless steel experimental analysis through optimization taguchi method Harpreet Singh 1 , Barkat Ali 2 1 Mechanical Engineering Department, Delhi Institute of Technology Management and Research (DITMR), Faridabad, Haryana, India 2 Asistant Professor, HOD, Mechanical Engineering Department, Delhi Institute of Technology Management and Research (DITMR), Faridabad, Haryana, India ABSTRACT A literature review of studies and research has been made in the field of dissimilar metal welding. It has various industrial applications such as in field of automobile chemical mechanical thermal power generation, nuclear plant. The main purpose of this paper is to review (a) Dissimilar metal welds and aspect of mechanical and metallurgical point of view. (b) Enhancing GMAW Technique. And second main objective of present study is to apply the taguchi method .In this technique an orthogonal array ,signal to noise ratio (S/N)and analysis to variance (ANOVA) are made to study the welding characteristics of material & optimize the welding parameters Keywords- Automated MIG Welding System, Grinding machine, orthogonal array, Signal to noise (S/N) ratio, ANOVA I. INTRODUCTION There are many different factor in which weld ability depend like metallurgical changes that occur welding process. Oxidation occurs during welding contamination with environment and effect of hardness due to instant solidification Stainless steel of 201LN is welded to 300 series basically called Jindal stee(J4-16Cr.) using a metal inert gas welding which also known as gas metal arc welding with the help of filler wire. Argon gas is used as a inert shielding gas in this process. There are larger numerous application of combination of higher quality grade and inferior quality grade austenitic steel in industry such as nuclear plant in heat exchanger assembly. In this combination we adhere the cumulative application of J4-Cr stainless steel as its low cost and corrosion resistance property of higher quality stainless steel. Application are major essential in welding of two which can perform the desired durable service requirement in industry. Originality/ value with the help of optimal parameter computed result are prepared and these factors are identified such as tensile strength, stress concentration, percentage elongation.in this paper new result of dissimilar metal weldment are emphasized with optimization technique using taguchi method. Process Parameters There are various parameter encountered in which the welding quality is the major element. Actually the welding quality are mainly depend on bead geometry,