MANUFACTURING OF COMPOSITE PARTS Russian patent published in 2019 - IPC B29C70/44 

FIELD: laminated products or materials.

SUBSTANCE: invention relates to production of composite parts. Technical result is achieved by method of composite part manufacturing, which includes preparation of layered workpiece, having edges coming in contact with tooling, and upper surface, wherein the laminated workpiece comprises a composite material, providing a ventilation member located on the upper surface of the layered workpiece and located at a distance from said edges of the layered workpiece, providing a first layer of ventilation material between the ventilation element and the layered workpiece, coating the layered workpiece and the ventilation element with sheet material, establishment of low pressure between sheet material and layered workpiece, hardening of layered workpiece in autoclave, operating at increased pressure. At that, the ventilation element contains an incompressible part, which has a channel facilitating flow of fluid medium. At that, said part of ventilation element is incompressible at increased pressure of autoclave under effect of sheet material when low pressure is supplied.

EFFECT: technical result is increased stability of low pressure transmission along length of laminated workpiece.

18 cl, 17 dwg