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Paper Details

Paper Title
Gas Tungsten Arc Welding (GTAW) is the most important joining technique in almost all types of manufacturing sector. GTAW is suitable for welding thin work materials when good quality and surface finish are required. The presence of certain impurities in steel such as sulphur, oxygen etc in the weld pool can significantly change the change the welding penetration depth in GTAW. Several mechanisms have been proposed for producing a relatively deep and narrow weld. A novel variant of GTAW process called the A-GTAW process involves application of thin coating (10-15μm thick) of activated flux on the joint area prior to welding. Literature identifies that the penetration capability of the arc in GTAW can be significantly increased by the application of a flux coating containing active ingredients, onto the joint surface prior to welding. The present study investigated the performance of stainless steel (AISI SS304) using A-GTAW process using Design of Experiments (DOE) methodology. L18 orthogonal array design matrix was followed. Mechanical testing- Tensile testing, micro hardness testing and microstructures was performed to check the performance of the welded joints. Taguchi`s method was used to analyze the results. The results indicated that the performance of weldments was improved by welding with A-GTAW. Tensile strength and micro hardness was improved by A-GTAW.
GTAW, A-GTAW, stainless Steel (AISI SS304), Design of Experiments, Taguchi Methodology, Performance, Measures, Optimization.
Others Details
Paper Id : 48477
Author Name : mukesh Kumar
Co-Author Name(s) : Mohd Vaseem
Volume/Issue No : Volume 05 Issue 03
Page No : 233-242
DOI Number : DOI:10.21090/IJAERD.48477
Publication Date : 2018-03-11
License : This work is licensed under a Creative Commons Attribution 4.0 International License.
website :
Impact Factor : 4.72, SJIF-2016
ISSN Details : eISSN: 2348-4470, pISSN:2348-6406