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Home  >  Volume 46 (May, 2018)

25. KNOWLEDGE MANAGEMENT PRACTICES IN NIGERIAN SOFTWARE ORGANISATIONS by Oveh R.O. and Egbokhare F.A. Volume 46 (May, 2018 Issue), pp191 –196
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DETERMINATION OF OPTIMAL PROCESS PARAMETERS FOR A MIG WELDED PLATE USING THE TAGUCHI OPTIMIZATION METHOD.

S. O. Sada.

Department of Mechanical & Production Engineering, Faculty of Engineering, Oleh Campus, Delta State University. Nigeria.

Abstract

The desire for better weld quality and greater efficiency has continued to dominate the production requirements for manufacturers in the welding sector. One setback, the industry has continued to suffer is the deterioration in the quality of welds due to unguided application of heat. Identification of a suitable welding process and the Optimization technique of the weld input parameters have no doubt helped to address problem of poor quality welds. This study establishes the suitability of using Taguchi optimization method in obtaining optima process parameters for a Metal Inert Gas (MIG) welded joint.

The study was performed on a 10mm thick mild steel plate using the metal inert gas arc welding process. The effect of certain process input parameters on the tensile strength of the welded plate was tested and analyzed using the Taguchi Optimization method with the aim of optimizing the tensile strength of the welded joint. ANOVA test showed that the welding current and gas flow rate had the most significant effect on the weld response Tensile Strength. Confirmatory analysis was made by comparing the experimentally obtained data and the predicted values, the residue was uniformly distributed. The model F-value of 12.69 showed that the model employed is significant. The following optima value were obtained, current setting of (180amp), voltage (18volt), gas flow rate (22L/min) and filler rod (4.5mm/sec).

Keywords: Mild Steel, MIG Welding, Signal/Noise Ration, Taguchi Optimization.

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