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Optimization Of Tig Welding Process Parameters For Welding Of Dissimilar Metals Taking Ss-304 As Base Metal
Sunil Patidar,  Dheeraj Soni
In the industries, dissimilar metal joints are mostly used in the form of a structural material for different manufacturing applications because it yields high strength and corrosion resistance. However, the joining process is difficult as both the materials have different mechanical and chemical properties; optimum use of the process parameters becomes utterly important. Ultimate tensile strength was used as major parameter to perform the optimization study. Mechanical joints obtained were also compared among each other on the basis of ultimate tensile strength and hardness tests. Taguchi method was used primarily for optimising the process parameters involved in welding of dissimilar joints. Mechanical joints obtained in the form of stainless steel- mild steel, stainless steel- carbon steel and stainless steel-stainless steel were used for the study. Analysis of variance (ANOVA) method was also used for performing the optimization study and study performed by Taguchi method was validated by using ANOVA method. For welding process, gas welding process was used to create butt joint. In this project two different category of steels namely carbon steel and mild steel has been welded with stainless steel as a butt joint. Similarly, stainless steel was also welded with stainless steel of same thickness. Plate thickness was considered to be 5 mm for all the materials. All the samples created were cut into test samples according to the dimensions of the ASTM standards. Moreover, the samples were tested in universal testing machine (UTM) and vicker hardness machine in order to obtaining their tensile strength and hardness values. Current, Gas flow density and filler rod thickness were some of the most important process parameters and they were found out to affect the performance of the joint formed by dissimilar metals.
Keywords: TIG Welding, Stainless Steel, ANOVA, Taguchi Method, UTM.
Keywords- TIG Welding, Stainless Steel, ANOVA, Taguchi Method, UTM.
Unique Identification Number - IJEDR2004033Page Number(s) - 197-205Pubished in - Volume 8 | Issue 4 | December 2020DOI (Digital Object Identifier) -    Publisher - IJEDR (ISSN - 2321-9939)
Cite this Article
Sunil Patidar,  Dheeraj Soni,   "Optimization Of Tig Welding Process Parameters For Welding Of Dissimilar Metals Taking Ss-304 As Base Metal"
, International Journal of Engineering Development and Research (IJEDR), ISSN:2321-9939, Volume.8, Issue 4, pp.197-205, December 2020, Available at :http://www.ijedr.org/papers/IJEDR2004033.pdf