Optimization of Gas Metal Arc Welding Process Parameters on Structural Steel Plates by Taguchi Method.

Abstract

Steel welding is one of the most contentious academic topics nowadays. Shielded metal gas welding techniques’ impact on the welding of AISI1040 steel have been qualitatively investigated (MIG and TIG). The experimental layout must be developed using the Taguchi approach. Arc voltage, arc current, welding speed, nozzle to work distance, and gas pressure have all been found to have an effect on weld quality. The backing plate’s thickness as well as the plate’s thickness both matter. A trial design based on an orthogonal array is used to create weldments. To determine how successfully the weldments were welded, a set of tests are performed on them. ANOVA is used to assess the suitability of the data. The computed result is used as a contribution from each parameter to obtain the optimum values for fault minimization. Weldments are examined using an angle beam test, and the outcomes are assessed using ultrasound testing (UT). The presence of faults in the tested specimens, such as LOP, LOF, Blowholes, and Cracks.