Experimental investigation of fatigue properties of FSW in AA2024-T351

Abstract

The fatigue properties of friction stir welds (FSW) in 2024-T351 alloys have been investigated. In this paper, the influence of rotation speed and welding speed on the fatigue properties of friction stir welds (FSW) in EN AW-2024 T351 an aluminum alloy is investigated. 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. 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.