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Application of Expert Methods for Predicting Liquidus Temperature of TIG Weldments

Author

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  • F. O. Uwoghiren

    (Department of Production Engineering, University of Benin, Benin City, Edo State, Nigeria)

  • A. Ozigagun

    (Department of Production Engineering, University of Benin, Benin City, Edo State, Nigeria)

  • Tunde Basit Adeleke

    (Department of Production Engineering, University of Benin, Benin City, Edo State, Nigeria)

Abstract

Liquidus temperature is regarded as the minimum temperature required for an alloy to completely transform into the liquid state. Uncontrolled temperature leads to excessive heat generated in the material which create wider heat affected zone, alters the microstructure of the material and also induce residual stresses in the material. Optimizing this process is one sure way of producing a quality weld. In this study, the application of expert systems such as response surface method to optimize the liquidus temperature was pursued. The central composite design matrix was employed to collect data from the sets of experiments. The specimen was made from mild steel plates and welded with the tungsten inert gas process. The result of the response surface method shows that current has a very strong influence on the liquidus temperature. The model for optimizing liquidus temperature has a P-value

Suggested Citation

  • F. O. Uwoghiren & A. Ozigagun & Tunde Basit Adeleke, 2019. "Application of Expert Methods for Predicting Liquidus Temperature of TIG Weldments," European Journal of Engineering and Technology Research, European Open Science, vol. 4(5), pages 21-25, April.
    • Handle: RePEc:epw:ejeng0:v:4:y:2019:i:5:id:61263
    DOI: 10.24018/ejeng.2019.4.5.1263
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