Statistical Analysis of Welding Parameters Affecting the Tensile Strength of Mild Steel Plates

Abstract

This study is aimed at using various statistical analyses within the Design of Experiments (DOE) technique to investigate and analyze the effect of welding process parameters on the tensile strength of A36-grade mild steel. Three process parameters and two corresponding levels were considered and the MIG welding process was performed. The ideal conditions to achieve the highest strength were determined and the results were obtained by running the design on a statistical software Minitab. This experimental study found that the only factor having a significant contribution to the tensile stress of the plates in the selected scenario is the weld speed. In addition, this study provides valuable insights for enhancing welding procedures and techniques. The paper concludes with a reasonable interpretation of the test results and justifies the research questions that were proposed.