Analysis of the Influence of Welding Process Parameters of Gas Tungsten Arc Welding (GTAW) with Aluminum Material AA-6061 With Micro Structure Test : Analisa Pengaruh Proses Parameter Pengelasan Gas Tungsten Arc Welding (GTAW) Bermaterial Aluminium AA-6061 dengan Uji Mikro Struktur

This research analyzes the effect of current variations (80 Ampere, 100 Ampere, and 120 Ampere) in the Gas Tungsten Arc Welding (GTAW) welding process on AA6061 aluminum material. The microstructural test results show significant differences in the microstructural characteristics of the weld zone. At a current of 80 Amperes, the microstructure looks homogeneous with small grains evenly distributed. At a current of 100 Amperes, changes in the microstructure occur with the formation of larger grains. At a current of 120 Amperes, the grains become larger and the area is rougher. These results have practical implications in the development of AA6061 aluminum welding processes, where appropriate microstructural properties are critical for strong and durable joints. This study illustrates that current regulation in GTAW can be used to control the microstructure and mechanical properties in welding AA6061 aluminum, opening the door to the development of more sophisticated processes in diverse industrial applications