Forming mold for cylindrical composite material component with flanging and preparation method thereof

Abstract

The invention relates to a forming mold for a cylindrical composite material component with flanging and a preparation method thereof. The mold includes a core tube, an insert, an end cover, a flange shaft, an equal pressure plate and a demoulding tool, wherein the demoulding tool includes a demoulding tool There are two parts: the frame and the top plate; the technical solution of the present invention can solve the problem of difficulty in forming the thin-walled ceramic matrix composite material with variable cross-section with flange; ensure that sufficient molding pressure can be provided for the prepreg during the molding process, and ensure that Each surface of the component is evenly pressed to avoid component defects; the block insert design and demoulding tooling ensure that the component can be safely and smoothly removed from the mold after forming, which improves the forming quality and forming efficiency of this type of component.

Description

technical field [0001] The invention relates to a molding die for a cylindrical composite material component with flanging and a preparation method thereof, belonging to the technical field of composite material molding and manufacturing. Background technique [0002] Due to its excellent high temperature resistance, oxidation resistance, corrosion resistance and low density, ceramic matrix composites have important applications in aerospace and other fields, especially in the field of aeroengines. preferred. At present, enterprises represented by GE in the United States have successfully realized the mass production of ceramic matrix composite materials, and prepared different materials such as combustion chambers, flame tubes, exhaust mixers, turbine guide vanes, turbine outer rings, and tail nozzle central bodies. The components of the structure, and successfully realized commercial applications on LEAP and other types of aero-engines. [0003] Ceramic matrix composites...

AI Technical Summary

Problems solved by technology

At present, the relatively mature curing method of ceramic matrix composites is molding and shaping, but due to the inability to uniformly pressurize and the difficulty of operation, this method is not suitable for the preparation of variable-section cylindrical components with flanges.

In addition, the key technology of prepreg-infiltration process to prepare ceramic matrix composites has just been broken through in China in recent years, and there are relatively few studies on the use of prepregs to prepare ceramic matrix composite components.

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