Avtomaticheskaya Svarka (Automatic Welding), # 6, 2018, pp. 38-46
Modern methods of manufacturing three-layer panels
from aluminium alloys (Review)
Yu. V. Falchenko, L. V. Petrushinets
E. O. Paton Electric Welding Institute of the NAS of Ukraine. 11 Kazimir Malevich Str., 03150, Kyiv, Ukraine.
Three-layer panels with periodic cellular core from aluminium alloys are promising for application in aerospace products, ground and water transportation. The uniqueness of the three-layer panel design consists in that they are characterized by high values of strength and rigidity at a relatively small mass. The work deals with the main types of three-layer panels, design features of manufacturing the cores, methods to join the honeycomb core strips to each other, as well as the three-layer panel elements into one structure. The objective of the presented review is analysis of modern methods of manufacturing three-layer panels from aluminium alloys. Analysis of published data showed that such methods of joining the three-layer panel elements as adhesive bonding and brazing became the most widely applied. Their main disadvantage, however, is increase of the structure mass due to application of an adhesive or braze alloy. Application of diffusion bonding with manufacture of honeycomb core from a stronger titanium alloy for joining three-layer panels or application of a specialized fixture, which allows limiting the degree of plastic deformation of the structure, are promising for welding of three-layer panels. 28 Ref., 1 Tabl., 9 Fig.
: aluminium alloys, three-layer panels, core, adhesive bonding, brazing, welding
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