Scholarlink

<p>This study reports the use of Taguchi and factorial designs for optimisation of the arc stability, melting characteristics, and weld bead morphology in self-shielded flux-cored arc welding process (FCAW-S) with exothermic addition MnO<sub>2</sub>-Al into the core filler. The influence of the various hardfacing conditions such as travel speed (<i>TS</i>), set arc voltage (<i>U</i><sub><i>set</i></sub>), the contact tip to contact weld distance (<i>CTWD</i>), and wire feed speed (<i>WFS</i>) were selected as input process parameters. Taguchi method was used to study the effect and optimisation of various hardfacing conditions, analysis of variance (ANOVA) was used to determine the most significant factors influencing dependent, while factorial design (<i>FD</i>) was utilised to develop a mathematical model relating the responses. It has been established that the stability of arc combustion is most influenced by the set voltage on the power source, the optimal values of which are at medium and high levels (<i>U</i><sub><i>set</i></sub> = 29.2–32.5 V). The arc stability parameters had a small effect on the spatter factor, as the results of the research showed. Melting indicators such as deposition rate and efficiency are significantly affected by the tip-to-work distance. It was determined that the morphology of the weld beads was most significantly influenced by the travel speed (<i>TS</i>) and the set voltage on the power source <i>U</i><sub><i>set</i></sub>. To optimise the hardfacing parameters, principal component analysis was used, which made it possible to determine the optimal parameters of the hardfacing process: travel speed <i>TS</i> = 0.46&#xa0;m·min<sup>−1</sup>, set arc voltage <i>U</i><sub><i>set</i></sub> = 28.5&#xa0;V, contact tip to contact weld distance <i>CTWD</i> = 43&#xa0;mm, and wire feed speed <i>WFS</i> = 2.0&#xa0;m·min<sup>−1</sup>.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Optimisation of hardfacing conditions carried out by self-shielded flux-cored wire using combined Taguchi method and factorial design

  • 期刊论文

  • 发表日期：

    2025年8月21日

查看全文
  • Bohdan Trembach,
  • Illia Trembach,
  • Aleksandr Grin,
  • Nataliia Makarenko,
  • Rebrov Oleksii,
  • Yuliia Musairova,
  • Nadia Kuravska,
  • Sergey Knyazev,
  • Ihor Krasnoshapka,
  • Maksym Kuravskyi,
  • Vadym Krykun,
  • Andrii Nedashkovskyi,
  • Anatoliy Panchenko

摘要

This study reports the use of Taguchi and factorial designs for optimisation of the arc stability, melting characteristics, and weld bead morphology in self-shielded flux-cored arc welding process (FCAW-S) with exothermic addition MnO2-Al into the core filler. The influence of the various hardfacing conditions such as travel speed (TS), set arc voltage (Uset), the contact tip to contact weld distance (CTWD), and wire feed speed (WFS) were selected as input process parameters. Taguchi method was used to study the effect and optimisation of various hardfacing conditions, analysis of variance (ANOVA) was used to determine the most significant factors influencing dependent, while factorial design (FD) was utilised to develop a mathematical model relating the responses. It has been established that the stability of arc combustion is most influenced by the set voltage on the power source, the optimal values of which are at medium and high levels (Uset = 29.2–32.5 V). The arc stability parameters had a small effect on the spatter factor, as the results of the research showed. Melting indicators such as deposition rate and efficiency are significantly affected by the tip-to-work distance. It was determined that the morphology of the weld beads was most significantly influenced by the travel speed (TS) and the set voltage on the power source Uset. To optimise the hardfacing parameters, principal component analysis was used, which made it possible to determine the optimal parameters of the hardfacing process: travel speed TS = 0.46 m·min−1, set arc voltage Uset = 28.5 V, contact tip to contact weld distance CTWD = 43 mm, and wire feed speed WFS = 2.0 m·min−1.