The Investigation Of GMAW Process Variables On Lap Joint Of Aluminium Alloy 5083

P. Manickavelu, Gogulan (2019) The Investigation Of GMAW Process Variables On Lap Joint Of Aluminium Alloy 5083. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

The material used as a workpiece to be joined in this study was Aluminium Alloy 5083. Aluminium alloy 5XXX contains 4.5-4.9% of Magnesium. Gas Metal Arc Welding (GMAW) was used to join aluminium alloys and aluminium composites because of its economic and good quality welds among the arc welding processes. Coarse grain structure arrangement and intermetallic development in the weld zone that can decrease the quality of the weld can happen during the GMAW. Other than that, another issue that happens is the mechanical behaviour of Aluminium alloy 5083 while being welded. Therefore, in order to solve this problem, optimized parameters are used such as welding voltage, arc travel speed and welding current of the GMAW. The welding procedure was performed by utilizing EWM Robot Welding. Autogenous welding, lap joint with 3mm thickness of plate. The design parameter was created by utilizing Minitab Software and the tensile testing value and microhardness value was the reactions in this research. Furthermore, Taguchi Methodology and Analysis of Variance (ANOVA) was used to analysed the data collected from the experiment.

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