Abstract
Welding methods are one of the promising methods to join similar or dissimilar materials. In particular, Tungsten Inert Gas (TIG) welding is widely used in the field of industry. However, correct selected parameters and their effect on the environment are important factors in obtaining a good metal join. The aims of this study to investigate the role of the filler and heat treatment on mechanical properties of the similiar joint 6061 Aluminum, and also discuss the effect of this method on the enviroment based on literature review. Three different fillers consist of ER 4043, ER 4047, ER 5556 and artificial aging with temperatures of 125°C, 155°C, 185°C respectively were conducted using TIG welding. To investigate mechanical properties, the Vickers hardness, tensile test and also microstructure observations were carried out at room temperature. The result shows that the maximum hardness is 91.6 HV and the tensile strength is 180 MPa obtained by using filler ER 5556. On the other hand, artificial aging successfully enhances the mechanical properties of the 6061 aluminum welding.
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