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A Cooks Distance Approach to Control the Haz and Arc Length of Tig Mild Steel Weld

Author

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  • F. O. Uwoghiren

    (University of Benin, Nigeria)

  • A. Ozigagun

    (University of Benin, Nigeria)

Abstract

The heat affected zone and arc length parameters have a vital role to play in determining the integrity of a weld structure. The cooks distance is a statistical diagnostic employed in this study to select the best optimum combination of welding process parameters. Mild steel plate was the choice material used to produce the weld specimen, which was welded with the Tungsten inert gas method. The RSM model was used to develop an optimal solution that can explain the behavior of the welded joint with respect to the heat affected zone and arc length, different diagnostic techniques were employed which includes the normal probability plot and cooks distance plot. The model developed has sufficient merit as the results obtained shows that the cooks distance values is within the range of 0 and 1 indicating the absence of outlier in the data making the optimal solution highly acceptable.

Suggested Citation

  • F. O. Uwoghiren & A. Ozigagun, 2021. "A Cooks Distance Approach to Control the Haz and Arc Length of Tig Mild Steel Weld," European Journal of Engineering and Technology Research, European Open Science, vol. 6(5), pages 141-145, July.
    • Handle: RePEc:epw:ejeng0:v:6:y:2021:i:5:id:62543
    DOI: 10.24018/ejeng.2021.6.5.2543
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