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Vol.23, No.2 2023, pp. 141–146 |
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PROPERTIES OF ALUMINIUM-STEEL PLATES EXPLOSIVELY WELDED USING AMONEX Miloš Lazarević1, Bogdan Živković1, Danica Bajić2*, Ana Alil3, Ljubiša Tomić4, Bogdan Nedić1 1) University of Kragujevac, Faculty of Engineering, SERBIA 2) Military Technical Institute, Belgrade, SERBIA *email: danica.bajic@mod.gov.rs 3) University of Belgrade, Institute for Chemistry, Technology and Metallurgy, Belgrade, SERBIA 4) Technical Test Centre, Belgrade, SERBIA
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Abstract The aim of this study was to investigate the possibility to use the industrial explosive Amonex, which belongs to a group of low-to-middle detonation velocity explosives, for welding of metallic materials. It consists of ammonium nitrate and TNT as energetic components and other inert ingredients and has a powdery consistency, easily applicable in a desirable layer over the metal plates to be welded. Within this research, Amonex was applied to weld plates of aluminium Al 2024 and steel 1.0216 (according to EN 10027-2). The procedure of welding was carried out in the configuration of parallel plates, and afterwards the welded joint was examined. Ultrasonic method and infrared imaging were used as non-destructive techniques, and then the samples were cut from the welded plate using water-jet, in order to perform microscopic analyses of the cross-section in the joint area. It was observed that a good-quality welded joint was obtained, and that the selected explosive may find further application in this area. However, certain non-welded area was observed, encouraging future modification of the welding procedure set-up. Keywords: explosion welding, steel, aluminium, non-destructive testing, indentation hardness |
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