Manufacturing Technology 2024, 24(1):53-61 | DOI: 10.21062/mft.2024.018

Research on FSW Welds of Al-Alloy Modified by Laser Shock Peening Process

Henrieta Chochlíková ORCID...1, Jozef Majerík ORCID...1, Igor Barényi ORCID...1, Matúš Gavalec ORCID...1, Jana Escherová ORCID...1, Milan Pecanac ORCID...2, Dragan Rajnovic ORCID...2, Sebastian Baloš ORCID...2, Marcel Kohutiar ORCID...1
1 Faculty of Special Technology, Alexander Dubcek University of Trencin, Trenčín, 911 06, Slovakia
2 Faculty of Technical Sciences, University of Novi Sad, Novi Sad, 21000, Serbia

The friction stir welding (FSW) method is classified as a so-called green or eco-friendly production technology in terms of its environmental impact. In the process of friction stir welding, there is no melting and the weld joint is formed by the movement of a rotating tool between the materials to be welded. The advantage of this technology is welding without the accompanying phenomena such as the release of harmful substances into the air, the emission of infrared, ultraviolet and visible radia-tion, and low energy consumption. In this work, friction stir welding tests of FSW and SR-FSW type were carried out, the butt welds themselves were performed on EN AW - 6060 sheets of 5 mm thick-ness. The surfaces of the specimens that met the weld quality visually were treated with laser shock peening (LSP), which is based on a pulsed effect. In the process of experiments, the authors investi-gated the weld quality at different speeds and tool rotation visually, then the welds were subjected to microscopic analysis, microhardness analysis and nanohardness analysis.

Keywords: Friction Stir Welding FSW, Laser Shock Peening LSP, Aluminium alloy, Mechanical properties, Microstructural analysis
Grants and funding:

This article was supported by the Slovak Research and Development Agency under contract No. APVV- SK-SRB-21–0030 with the name „Eco-friendly Self Reacting Friction Stir Welding of Al-alloys after treated with Laser Shock Peening“

Received: November 16, 2023; Revised: February 12, 2024; Accepted: February 15, 2024; Prepublished online: February 15, 2024; Published: February 23, 2024  Show citation

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Chochlíková H, Majerík J, Barényi I, Gavalec M, Escherová J, Pecanac M, et al.. Research on FSW Welds of Al-Alloy Modified by Laser Shock Peening Process. Manufacturing Technology. 2024;24(1):53-61. doi: 10.21062/mft.2024.018.
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