The process of joining aluminum metal requires a special welding method. use GTAW is suitable method for plates. This research intended to analyze the tensile strength and microstructure Aluminum 6061 with various currents. used in this experimental research. Welding current variations study were 100A, 115A, 130A, then tested using destructive test, test. data analysis descriptive analysis, whe...

This paper deals with a three-component aluminum alloy AlMg4.5Mn that was welded using GTAW process in the shielded atmosphere of Ar+70%He+0.015%N2. The weld-metal toughness evaluated at three different temperatures instrumental Charpy pendulum impact testing to measure not only total energy, but also crack initiation energy and growth energy. Fractographic analysis fracture surfaces EDS large ...