Compound material grating sandwich flange forming mold and forming method

Abstract

The invention discloses a compound material grating sandwich flange forming mold and forming method, and belongs to the field of flange production. Winding forming of a compound material grating sandwich flange can be achieved, the compound material grating sandwich flange component production efficiency is improved, and the manual cost is reduced. The compound material grating sandwich flange forming mold comprises a rotating shaft, a silicon rubber block, a plastic foam block and a compaction board; the rotating shaft is located on an axis of the mold, the silicon rubber block and plastic foam are located on the upper and lower surfaces of the rotating shaft, and the compaction board is located on the periphery of the silicon rubber block and the plastic foam block. In a flange forming process, firstly, an inner skin of a formed structure is wound around the rotating shaft; then a formed grating sandwich is wound around the silicon rubber block; finally, the silicon rubber block is removed, and a formed outer skin is wound around the plastic foam block; in forming processes of the inner skin, the outer skin and the grating sandwich, flange end sockets are formed at the same time,after a structure is subjected to winding forming, the compaction board is used for compacting the periphery of a component, and after the structure is subjected to curing forming, the compaction board is detached.

Description

technical field [0001] The invention belongs to the field of flange manufacturing, and in particular relates to a composite material grid sandwich flange forming die and a forming method. Background technique [0002] Resin matrix composite grid structure is a lightweight grid structure, which has a wide range of application prospects in the aerospace field due to its mechanical properties of high specific strength and high specific stiffness. Flange, as the interconnected part between the shaft and the shaft, is usually cylindrical, including the flange connection end face (flange plate) and the transition section. In order to improve the bearing efficiency of the flange structure, the flange transition section can be designed as a grid sandwich structure. The composite grid interlayer cylindrical flange can be manufactured by the winding process, and the production efficiency is high. For the non-columnar flange whose transition section is a flat plate structure, there i...

AI Technical Summary

Problems solved by technology

For non-cylindrical flanges whose transition section is a flat plate structure, there are few literature studies on its manufacturing process

The manufacturing process of composite flat plate structure can be used for reference, and the manual lay-up process can be used to manufacture this type of flange structure, but the labor cost is high and the manufacturing efficiency is low

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