Parametric Optimization (GMAW) for the Improvement of Mild Steel Weld Strength Using Response Surface Technique.

Autor: Okuma, Silas Oseme, Eki, Martins Ufuoma, Oluwafemi, John Damilola, Orumgbe, Chukwuekum
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Zdroj: International Journal of Research in Industrial Engineering (2783-1337); Dec2022, Vol. 11 Issue 4, p390-398, 9p
Abstrakt: In every welding operation, the Ultimate Tensile Strength (UTS) of the weld in comparison to the parent metal is the most desirable strength metric. It is necessary that the parameters of the welding process be continually examined and improved due to the growing demand for stronger weld connections in structural and industrial materials. This study's objective is to investigate the flaws in the welding procedure that the investigated industrial company employs and to come up with alternative, specially designed, and enhanced process parameters to replace the existing procedure welding protocol. If successful, this will result in improved weld results and a higher UTS. The Response Surface Methodology (RSM) was then utilized in order to optimize the suggested process parameters on the basis of a comparison to the previously published research. The tensile strength of 200mm x 20mm GMAW welding plates was evaluated through the use of testing procedures. The results of the experiments were evaluated using the RSM approach, and the findings demonstrated that the current, voltage, and travel speed were the primary factors that determined the final strength of the weld. The results also show that there is a significant correlation between the values that were measured and those that were anticipated for the UTS. Maximum UTSs of 425, 450, and 475MPa. Were achieved when welding voltages were set at 28 volts, currents were set at 240 amperes, and travel rates were set at 0.012 meters per second. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index