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<p>The current study aims to investigate the effects of input factors on UTS (ultimate tensile strength), PE (percentage elongation), bead width and depth of penetration in TIG welding austenitic stainless steel 304L. Experiments were systematically designed using the Taguchi L9 orthogonal array technique, allowing efficient exploration of the parameter space using only nine experimental runs. X-rays radiography test was taken of the weld specimens to look for outer and inner surface defects. This study emphasizes the use of and TOPSIS (Technique for Order of Preference by Similarity to Ideal Solution) method to find the ideal input parameters as well as significant outcome. Engineers and technicians may identify parametric parameters for better welding with the use of recent research and thorough study on connecting incompatible on those materials.</p>

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Optimization of Process Parameters for Tungsten Inert Gas Welding of 304L Austenitic Stainless Steel Using Topsis Method

  • 期刊论文

  • 发表日期：

    2026年4月9日

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  • Nabendu Ghosh,
  • Angshuman Roy

摘要

The current study aims to investigate the effects of input factors on UTS (ultimate tensile strength), PE (percentage elongation), bead width and depth of penetration in TIG welding austenitic stainless steel 304L. Experiments were systematically designed using the Taguchi L9 orthogonal array technique, allowing efficient exploration of the parameter space using only nine experimental runs. X-rays radiography test was taken of the weld specimens to look for outer and inner surface defects. This study emphasizes the use of and TOPSIS (Technique for Order of Preference by Similarity to Ideal Solution) method to find the ideal input parameters as well as significant outcome. Engineers and technicians may identify parametric parameters for better welding with the use of recent research and thorough study on connecting incompatible on those materials.