Abstract: The invention relates to the field of additive technologies and can be used for manufacturing components and structures made of composite materials. A device comprises an extruder having inlet channels, a heater, a camera, a temperature sensor, a nozzle for material discharge, mechanisms for feeding material and composite fiber in the form of thread, a thread-cutting mechanism, a table and a three-dimensional displacement mechanism. A method comprises manufacturing composite fiber, feeding the fiber and thermoplastic material into the extruder, and heating up the extruder, wherein the thermoplastic material is combined with the composite fiber. The composite material is then extruded onto the surface of the table, where the composite fiber cools and hardens, and the melt of thermoplastic material solidifies, bonding the composite fibers to one another and forming the article.

Abstract: The invention relates to the field of composite materials and can be used for the manufacture of parts and structures made of composite materials, such as brackets, fittings, basic parts, wearable products, mesh and honeycomb structures for use in aviation, rocket and space technology, medicine, automotive industry, etc. The reinforcing composite filament which contains a roving of reinforcing fibers impregnated with a thermosetting binder and has a cross section in the shape of a circle 0.1-0.7 mm in diameter or an ellipse with ellipticity from 1 to 2 and the largest diameter of 0.1-0.7 mm; and the impregnated roving is subjected to heat or other treatment right up to a complete curing of the thermosetting binder. With the help of the claimed composite filament, a prepreg can be made by adding a thermoplastic binder. And also the tape can be produced by connecting the claimed filament or prepreg with the use of cross-links made of thermoplastic material.

Abstract: The invention relates to the field of additive technologies and can be used for manufacturing components and structures made of composite materials. A device comprises an extruder having inlet channels, a heater, a camera, a temperature sensor, a nozzle for material discharge, mechanisms for feeding material and composite fiber in the form of thread, a thread-cutting mechanism, a table and a three-dimensional displacement mechanism. A method comprises manufacturing composite fiber, feeding the fiber and thermoplastic material into the extruder, and heating up the extruder, wherein the thermoplastic material is combined with the composite fiber. The composite material is then extruded onto the surface of the table, where the composite fiber cools and hardens, and the melt of thermoplastic material solidifies, bonding the composite fibers to one another and forming the article.

Abstract: The invention relates to additive manufacturing technologies and can be used for manufacturing parts and structures of composite materials reinforced by continuous fibers. The technical result is improving physical and mechanical characteristics and reducing the weight of products having a complex shape made of composite materials. The technical result is achieved by a print head containing a mechanism for supplying a plastic filament, a mechanism for supplying a reinforcing fiber, a mechanism for cutting the reinforcing fiber, a feed tube for the plastic filament, feed tubes for the reinforcing fiber and a heating unit. Furthermore, the heating unit contains a heater, a thermocouple or thermoresistor, and two inlet channels—a channel for the reinforcing fiber and a channel for the plastic filament—and a nozzle having an outlet channel for the reinforced plastic.