Tool Development for Friction Stir Welding of Aluminium Alloys

Kozák, Emese and Kovács, Zsolt Ferenc (2025) Tool Development for Friction Stir Welding of Aluminium Alloys. ACTA MATERIALIA TRANSYLVANICA (EN), 8 (1). pp. 23-27. ISSN 2601-8799

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Abstract

In recent years, the demand for aluminium and aluminium alloys has increased due to their favourable properties. The properties of aluminium alloys are almost the same as structural steel, but their weight is approximately one third. Technological developments have made it possible to weld metals that are difficult to weld with traditional fusion welding, such as aluminium alloys, using Friction Stir Welding (FSW). This article briefly introduces the FSW procedure and its application. During this research, 5053 aluminium alloys were welded with the mentioned technology, for which customized FSW tools were used. These tools were made with 3D printing technology, which ensured the manufacturing of complex geometries. After welding, the pieces were subjected to the following material tests: visual inspection, tensile tests, hardness tests and metallographic analysis.

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