Optimization of Parameters of Dissimilar Gas Tungsten Arc Welding using Grey Relational Analysis
Main Article Content
Abstract
This paper is aimed to study in detail about dissimilar welding of aluminium alloy (AA 1100) with mild steel (MS) of thicknesses 3.0mm and 2.0mm respectively. This paper also gives emphasis on the multi-objective optimization by using grey relational analysis (GRA) for samples welded with gas tungsten arc welding (GTAW). The welding input parameters are crucial in obtaining the desired weld quality. The experiments have been performed according to the L-8 orthogonal array.The input parameters chosen are the pulsed DC parameters such as pulsed current, base current, pulse on time percentage and frequency. The weld quality determining parameters are the ultimate tensile strength and rockwell hardness number. Grey relational analysis is used to obtain the optimum values of the input parameters for the optimum weld quality.
Article Details
Issue
Section
Articles
Authors who publish with this journal agree to the following terms: a. Authors retain copyright and grant the journal right of first publication, with the work two years after publication simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal. b. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal. c. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).