THE EFFECT OF WELDING SPEED ON THE MECHANICAL PROPERTIES OF FSW JOINTS IN AA2024-T351 ALUMINIUM ALLOY

Miodrag Milčić; Dragan Milčić; Nataša Zdravković; Natalija Mratinković

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Miodrag Milčić University of Niš, Faculty of Mechanical Engineering https://orcid.org/0000-0002-1089-8390
Dragan Milčić https://orcid.org/0000-0002-3936-7462
Nataša Zdravković https://orcid.org/0000-0001-6085-7522
Natalija Mratinković

Abstract

To achieve high-quality friction stir welded (FSW) joints with reliable mechanical performance, it is essential to select appropriate welding parameters. This study investigates the effect of welding speed on the fracture toughness and impact strength of butt joints in AA2024-T351 aluminum alloy produced by FSW. The experiments were conducted using a constant tool rotation speed of 750 rpm and varying welding speeds of 73, 116, and 150 mm/min. Fracture toughness and impact strength were evaluated in distinct zones of the FSW joint, providing insight into the correlation between welding speed and mechanical properties.

THE EFFECT OF WELDING SPEED ON THE MECHANICAL PROPERTIES OF FSW JOINTS IN AA2024-T351 ALUMINIUM ALLOY

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