A kind of manufacturing method of L-shaped edge composite material parts

Abstract

The invention discloses a manufacturing method of an L-shaped edge composite material part, which comprises an equipment main body, and an equipment groove area is arranged on the equipment main body; a demoulding cloth is arranged in the equipment groove area; The small gas molecules generated are removed from the upper surface of the part, and are blown off by compressed air or adsorbed and demolded. The invention effectively improves the manufacturing precision of the L-shaped edge composite material by laying the release cloth.

Description

Technical field [0001] The present invention belongs to the technical field of the L-type edge composite manufacturing process, and more particularly to a method of manufacturing an L-type edge composite material. Background technique [0002] Composites are widely used in the aviation field, and the amount of composite usage is an important indicator of the advancement of the aircraft. The composite material is mostly flat type, U type, S type, V-type, etc., its sharp curvature is usually smooth, and the L-type edge is prepared by rear processing cutting, no L-type edge compression A hot pressing tank of a component is reported. [0003] The L-type edge is typically used for the seams, fit, etc. between the substantia, and the edge edge edge edge edges of the substantiants are all L-type edges. The L-type edge is typically obtained by machining (such as cutting). This method is easily defective, cracking, burr, cutting pits such as layering, cracking, burrs, cutting pits, etc., ...

AI Technical Summary

Problems solved by technology

Generally, L-shaped edges are obtained by mechanical processing (such as cutting). This method is easy to cause defects such as delamination, cracking, burrs, and pits on the edge of the composite material, which seriously affects the processing accuracy of the composite material; Easy to cause damage such as overburning, mechanical properties and corrosion resistance

Therefore, it is particularly important to obtain a method for preparing L-shaped edge composite parts and avoid the performance degradation of the parts caused by post-processing.

[0004] The conventional preparation method of L-shaped edge composite parts is the resin transfer molding method. This preparation method, which relies on molds to obtain controllable dimensions, has the advantages of high precision and high surface quality of the parts, ensuring that it is not suitable for mechanical processing. L-shaped edge can be obtained; but the mold design is complicated, the cost is high and the process applicability is narrow (there are few applicable resin systems)

In the field of prepreg preparation of composite materials, this method has developed into the molding of matching mold autoclave, and is mostly used for large-scale parts with special functions such as integrity requirements. The cost of forming small and medium-sized parts is high.

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