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2021 №04 (04) DOI of Article
2021 №04 (06)

The Paton Welding Journal 2021 #04
The Paton Welding Journal, 2021, #4, 25-30 pages

Weld formation in consumable electrode welding of butt joints of amg5m aluminium alloy in site with a forming backing element and without it

T.M. Labur, M.R. Yavorska and V.A. Koval

E.O. Paton Electric Welding Institute of the NAS of Ukraine 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine. E-mail: office@paton.kiev.ua

The paper presents the results of studying the features of weld formation at consumable electrode pulsed-arc welding of 4 mm AMg5M alloy in different positions at the speed of 23 m/h with forming backing element (FBE) and without it. It is shown that sound welds form irrespective of the angle of butt joint inclination relative to the horizontal plane. FBE presence increases the geometrical dimensions of welds made with consumable electrode by 4–12 % on average, depending on the position of butt joints. Obtained data clearly demonstrates the possibility of achieving the required quality of welds and high level of mechanical properties in consumable electrode welding of aluminium-magnesium alloys at different positions of the butt joints without FBE application. 6 Ref., 3 Tables, 4 Figures.
Keywords: aluminium alloy, argon-arc welding, consumable electrode, filler wire, butt joint positions, forming backing element, welded joints, welds, solidification, structure, mechanical properties

Received 10.03.2021


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