STATISTICAL ANALYSIS OF THE EFFECT OF WELDING PARAMETERS ON THE TENSILE STRENGTH OF MILD STEEL JOINTS USING TAGUCHI’S DOE

  • Unique Paper ID: 199976
  • Volume: 12
  • Issue: 12
  • PageNo: 33-39
  • Abstract:
  • The quality and mechanical performance of welded joints are strongly influenced by the selection of appropriate welding parameters. In this study, a systematic statistical approach is applied to examine the effect of welding current, welding voltage, and filler rod diameter on the tensile strength of mild steel joints. Taguchi’s L9 orthogonal array is employed to minimize the experimental effort while enabling a reliable evaluation of factor influence. Mild steel specimens were welded according to the L9 design, and tensile tests were conducted to obtain the response values. The experimental data were analyzed using signal-to-noise (S/N) ratios with the “larger-the-better” criterion and analysis of variance (ANOVA) to determine the significance and relative contribution of each parameter. Results indicate that welding current and voltage have a dominant effect on joint strength, while filler rod diameter plays a lesser yet measurable role. The optimal parameter combination for maximizing tensile strength is identified based on S/N ratio trends and statistical evidence. A confirmation experiment validates the predicted improvement, demonstrating the effectiveness of the Taguchi method for welding process optimization. This study provides a practical and efficient framework for achieving high-quality mild steel welds through data-driven parameter selection.

Copyright & License

Copyright © 2026 Authors retain the copyright of this article. This article is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

BibTeX

@article{199976,
        author = {Mr. Virat P. Kshirsagar and Mr. Rahul R. Kulkarni and Mr. Pranay A. Makasare and Mr. Laxman V. Kamble},
        title = {STATISTICAL ANALYSIS OF THE EFFECT OF WELDING PARAMETERS ON THE TENSILE STRENGTH OF MILD STEEL JOINTS USING TAGUCHI’S DOE},
        journal = {International Journal of Innovative Research in Technology},
        year = {2026},
        volume = {12},
        number = {12},
        pages = {33-39},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=199976},
        abstract = {The quality and mechanical performance of welded joints are strongly influenced by the selection of appropriate welding parameters. In this study, a systematic statistical approach is applied to examine the effect of welding current, welding voltage, and filler rod diameter on the tensile strength of mild steel joints. Taguchi’s L9 orthogonal array is employed to minimize the experimental effort while enabling a reliable evaluation of factor influence. Mild steel specimens were welded according to the L9 design, and tensile tests were conducted to obtain the response values. The experimental data were analyzed using signal-to-noise (S/N) ratios with the “larger-the-better” criterion and analysis of variance (ANOVA) to determine the significance and relative contribution of each parameter. Results indicate that welding current and voltage have a dominant effect on joint strength, while filler rod diameter plays a lesser yet measurable role. The optimal parameter combination for maximizing tensile strength is identified based on S/N ratio trends and statistical evidence. A confirmation experiment validates the predicted improvement, demonstrating the effectiveness of the Taguchi method for welding process optimization. This study provides a practical and efficient framework for achieving high-quality mild steel welds through data-driven parameter selection.},
        keywords = {},
        month = {May},
        }

Cite This Article

Kshirsagar, M. V. P., & Kulkarni, M. R. R., & Makasare, M. P. A., & Kamble, M. L. V. (2026). STATISTICAL ANALYSIS OF THE EFFECT OF WELDING PARAMETERS ON THE TENSILE STRENGTH OF MILD STEEL JOINTS USING TAGUCHI’S DOE. International Journal of Innovative Research in Technology (IJIRT), 12(12), 33–39.

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