FIELD: aeronautical and space engineering.
SUBSTANCE: proposed composite material contains metal matrix made from aluminum-lithium alloy and magnesium-lithium alloy and strengthened with carbon fibers and carbon part strengthened with carbon fibers with outer layer of carbo-nitride compounds of titanium. Metal matrix and carbon part are connected by intermediate layer of carbonized polymer binder at heating within interval of polymer binder carbonization temperatures at simultaneous cooling of metal part with gas-and-liquid flow on base of nitrogen. Envelope-like case is assembled of at least two ferrules. Layer of polymer binder is applied on metal surface of welded zone between end bases of carbon parts strengthened with carbon fibers and carbon half-rings strengthened with carbon fibers are laid on it. Clearances are filled with polymer binder which is subjected to gas-dynamic sealing and heating for removal of hydrogen. Then binder is subjected to carbonization in clearance at simultaneous cooling of inner metal surface in zone of action of thermal source and graphitization of binder at simultaneous forming of outer layer from carbo-nitride titanium compounds by means of laser flame. Plasma torch is provided with Venturi nozzle with holes in nozzle body found after throat section for feeding the titanium powder into plasma flame.
EFFECT: enhanced strength and heat-resistance of articles; possibility of retaining preset geometric parameters.
7 cl, 6 dwg, 2 tbl
