Mechanical behaviour of Al 2024 alloy welded by friction stir welding

The paper presents the results of structural and mechanical testing of the alloyed aluminum alloys AA 2024 welded by the FSW process. Using the optimized tool and welding, 6 mm thick plates were connected. In this paper, the influence of rotation speed and welding speed on the macrostructure and cross section micro hardness of FSW welded joints of EN AW-2024 T351 a aluminium alloy is studied. The following welding parameters were used: the rotation speed of the tool did not change and amounted to 750 rpm, and the welding speed was 73, 116,150 mm / min. The compounds were obtained without the presence of errors and with an acceptable flat surface of the compound. (paper)