A Central Composite Design Approach to Minimize HAZ of TIG Weldments

Andrew Ozigagun and Raphael Biu
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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

European Journal of Engineering and Technology Research, 2019, vol. 4, issue 9, 149-152

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

Keywords: Heat Affected Zone; Percentage Dilution; Central Composite Design; Tungsten Inert Gas; Welding (search for similar items in EconPapers)
Date: 2019
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Persistent link: https://EconPapers.repec.org/RePEc:epw:ejeng0:v:4:y:2019:i:9:id:61496

DOI: 10.24018/ejeng.2019.4.9.1496

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