The purpose of this study is to examine the effects of different bevel angle of butt weld joint to the tensile properties of aluminum alloy. Gas tungsten arc welding (GTAW) will be the selected welding process and aluminium alloy 6061 will be the subject of the study. Tensile test will be conducted to acquire the tensile properties of the aluminum alloy. The samples of aluminum alloy 6061 will be cut into desired dimension and shape for the welding process. Then, for the tensile test, the samples will be cut into required shape depends on the testing machines. Data will be collected and comparison between the tensile properties of the samples with different weld joint will be made. Then we can see how the bevel angle of the butt weld joint affected the tensile properties of aluminum alloy 606
