ISSN: 0354-7965; eISSN: 3042-3163; UDC: 621.791; DOI: 10.65156

Albert Hauck 1,a, Milan Pecanac 1,b, Nenad Kulundzic 1,c, Sebastian Balos 1,d

1Univerzitet u Novom Sadu, Fakultet tehničkih nauka, Institut/odsek Proizvodno mašinstvo, Srbija

aalbert.hauck@uns.ac.rs

a0009-0003-8055-3866; b0000-0002-8016-9986; c0000-0002-6792-1408; d0000-0002-3828-8500

DOI: 10.5937/zzk2404165H

Article type: Original scientific paper

Article language: English/Serbian

Abstract: Friction Stir Welding (FSW) stands out as an innovative and demanding solid-state welding method gaining traction in modern fabrication. This paper explores the welding of an aluminiumsilicone-magnesium alloy using FSW technique with a use of a robot, by utilizing welding speeds of 160 to 250 mm/min. Variation of the tool’s rotary and welding speed was conducted to determine the optimal parameters for achieving desirable macro and mechanical properties, including tensile strength and impact energy. It was shown that higher tensile properties and lower impact energies are obtained with lower tool rotation speeds, which can be related to a lower heat input. The highest weld efficiency obtained was 91 %, proving that a relatively effective replacement of precipitation hardening with strain hardening occurred in the welding process.

Keywords: friction stir welding; welding parameters; mechanical properties

Article received: August 2024

Article accepted: November 2024

Acknowledgements: The paper was published in its original form in the Proceedings of the 33rd Conference with international participation “Welding 2024” held in Vrnjačka Banja, Serbia from October 2 to 5, 2024.