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Examines mechanical properties of AA6061 welded joints, indicating FSW performs better than GTAW.
The present work discusses the mechanical properties of AA6061-O welded joints made by friction stir welding (FSW) and gas tungsten arc welding (GTAW). Al AA6061-O plates of 6 mm thickness using ER4030 filler metal and tungsten electrode (EWth-2) were used in GTAW process. Different arc voltages and welding currents under argon shielding gas were applied. While, friction stir welded (FSW) joints were produced using different tool rotational and welding speeds. Then the welded joints were inspected by X-ray radiography to exclued the defected joints. Micro-hardness, tensile and impact tests were carried out to have specific information on the mechanical properties of the tested welded joints. It was observed that AA6061-O made by (FSW) welded joints had higher mechanical properties than those observed for GTAW.
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Mohamed et al. (2020) studied this question.
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