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<p>The Wire Arc Additive Manufacturing technique has become increasingly prevalent in numerous sectors due to its adaptability and capability to fabricate intricate components at high deposition rates. The primary interest of the article is to achieve the best input process parameters to achieve better mechanical properties. In the present work, the Taguchi L9 orthogonal array is used for sample fabrication with welding current (I), travel speed (V), and CTWD as process parameters. Grey relational analysis (GRA) is used to determine the optimal input parameters and their influence on the mechanical properties of additive-manufactured samples. Microhardness (MH), ultimate tensile strength (UTS), and percentage elongation (%EL). Optimized parameters were found I (100 A), V (0.5&#xa0;m/min), and CTWD (3.5&#xa0;mm). ANOVA was employed to assess the influence of process input parameters on the output responses. It is found that the current is the main input parameter that influences the mechanical characteristics of WAAM, followed by CTWD and travel speed. The input parameter settings were validated through a confirmation test.</p>

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Experimental investigation and parametric impact of current, travel speed, and CTWD on SS316L WAAM structures

  • 期刊论文

  • 发表日期：

    2026年1月16日

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  • Sudeep Kumar Jain,
  • Basant Lal,
  • Qasim Murtaza,
  • Pushpendra Singh,
  • Shailesh Mani Pandey,
  • Bijendra Prasad

摘要

The Wire Arc Additive Manufacturing technique has become increasingly prevalent in numerous sectors due to its adaptability and capability to fabricate intricate components at high deposition rates. The primary interest of the article is to achieve the best input process parameters to achieve better mechanical properties. In the present work, the Taguchi L9 orthogonal array is used for sample fabrication with welding current (I), travel speed (V), and CTWD as process parameters. Grey relational analysis (GRA) is used to determine the optimal input parameters and their influence on the mechanical properties of additive-manufactured samples. Microhardness (MH), ultimate tensile strength (UTS), and percentage elongation (%EL). Optimized parameters were found I (100 A), V (0.5 m/min), and CTWD (3.5 mm). ANOVA was employed to assess the influence of process input parameters on the output responses. It is found that the current is the main input parameter that influences the mechanical characteristics of WAAM, followed by CTWD and travel speed. The input parameter settings were validated through a confirmation test.