Fabrication and welding of aluminum alloys by nanopackaging electrodes

In the manufacture of structures made of aluminum alloys, there are different ways and means of carrying out per- manent joints, including welding. The physical essence of the manufacture of metal products by welding consists in ob- taining permanent connections as a result of melting and crystallization of the material of the welding electrode and the parts to be joined. The disadvantage of this method of Assembly is that the structure of the weld which is larger than the structure of the connected metal, which leads to lower mechanical properties in the weld zone. According to the results of the research there was a possibility of grinding the structure of the weld and improve the mechanical properties of the weldment type of a shell, welded from sheets of wrought aluminum-magnesium alloy AMg6 with the application as modifiers of nanopowders of chemical compounds. Nanopowders of chemical compounds represent superslow crystal- line or amorphous formation with particle sizes not exceeding 100 nm (1 nm = 10-9 m), which possess unique physical and chemical properties and mechanical characteristics that are significantly different from those for materials of the same chemical composition in a solid state. As a result, the work performed in a production environment there was the possibility of grinding the structure of the weld and improve the mechanical properties of the weldment type of a shell, welded from sheets of wrought aluminum-magnesium alloy AMg6 with the application as modifiers of nanopowders of chemical compounds of boron nitride BN, lanthanum hexaboride LaB6 and titanium carbonitride TiCN.