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A Central Composite Design Approach to Minimize HAZ of TIG Weldments

Author

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  • Andrew Ozigagun

    (Department of Production Engineering, Faculty of Engineering, University of Benin, P.M.B 1154, Benin City, Edo State, Nigeria)

  • Raphael Biu

    (Department of Production Engineering, Faculty of Engineering, University of Benin, P.M.B 1154, Benin City, Edo State, Nigeria)

Abstract

Welding is a multi-input multi-output fabrication process, which requires a multi-response optimization technique. In this present work, the effect of heat affected zone and percentage dilution on the quality of Tungsten Inert Gas welded joints was investigated using mild steel plates. The Central Composite Design matrix was adopted to perform the welding experiment and collect the data, thereafter Response Surface Methodology (RSM) models was employed to minimize heat affected zone and percentage dilution with very significant statistical results. The result shows that the quadratic model was the most suitable for the HAZ data and the percentage dilution data with a P-value

Suggested Citation

  • Andrew Ozigagun & Raphael Biu, 2019. "A Central Composite Design Approach to Minimize HAZ of TIG Weldments," European Journal of Engineering and Technology Research, European Open Science, vol. 4(9), pages 149-152, September.
    • Handle: RePEc:epw:ejeng0:v:4:y:2019:i:9:id:61496
    DOI: 10.24018/ejeng.2019.4.9.1496
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