FIELD: process engineering.
SUBSTANCE: proposed method is intended for producing such 3D components as branches, T-joints, crossovers in 3D structures, protective bodies and cases, machines and mechanisms, submarine hulls and motor boats, etc. In compliance with proposed method, forming reinforcing material with preset properties is used to cut out contour complying with structure being developed. Water-and-gas-tight thermoplastic material is used to make sealed cylinder shaped to said structure. Forming material outer surface is impregnated with cold-curing thermosetting resin to force working medium into sealed cylinder during resin polymerisation at pressure sufficient to ensure preset shape and sizes.
EFFECT: whatever spatial shape without using molding tooling.
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