PREDICTING HEAT INPUT IN SHIELDED METAL ARC WELDING OF LOW CARBON STEEL PIPELINES USING BOX-BEHNKEN DESIGN

Authors

  • Chukwudi Emmanuel Nnaji Department of Mechanical Engineering, Faculty of Engineering, University of Port Harcourt, Rivers State, Nigeria
  • Abiola Samson Adekunle Department of Mechanical Engineering, Faculty of Engineering, University of Port Harcourt, Rivers State, Nigeria

DOI:

https://doi.org/10.5281/zenodo.17190812

Keywords:

Heat input, Design of experiments, Response surface.

Abstract

Heat input is an issue in a welding process of low-carbon-steel pipelines, leading to low heat input which cause lack of penetration and produce refined microstructure, and high heat input which give excess penetration, and cause coarse micro structure, reduce weld toughness and cause distortion. This study aims to produce mathematical model that will predict heat input in shielded metal arc welding of low-carbon steel pipelines, by means of a Box Behnken design of experiment with response surface technique using Minitab V15 and Sigma V15 softwares, utilized to optimize the variables. Heat input model was established to predict heat input as per welding parameters. 

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Published

2024-11-05

Issue

Vol. 12 No. 4 (2024)

Section

Articles