Manufacturing process of carbon fiber automobile door outer plate

Abstract

The invention discloses a manufacturing process of a carbon fiber automobile door outer plate. The manufacturing process comprises the following steps of 1) manufacturing a special forming mold; 2) laying carbon fiber cloth; 3) closing the mold, injecting glue, and simultaneously vacuumizing; 4) curing and maintaining the pressure; and 5) demolding and taking out. In the forming mold, a lower mold(2) is provided with a knife edge (4) for cutting flash generated during forming at the edge of a cavity (3), and the forming mold further comprises a vacuumizing device. By adopting the manufacturing process, one-time compression molding can be realized through the mold without subsequent cutting of an extension edge and polishing of a cutting edge, so that the process is simple, the productionefficiency is high, and meanwhile, the product quality can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of forming carbon fiber products, in particular to a manufacturing process of a carbon fiber automobile door outer panel. Background technique [0002] Existing auto parts are developing in the direction of light weight. It is necessary to ensure its strength and reduce its weight as much as possible. For the outer panel of the automobile door, it is preferred to have strength and lightness. Therefore, carbon fiber materials are usually used for manufacturing, because carbon fiber has the advantages of lighter weight than aluminum, higher strength than steel, corrosion resistance, high temperature resistance, and high modulus. At present, there are many methods of manufacturing carbon fiber products, and the most suitable method for making automobile door outer panels is the compression molding method. This compression molding method is to put the carbon fiber material that has been pre-impregnated with re...

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Problems solved by technology

[0003] 1) In the molding process of carbon fiber in the prior art, an extension edge must be made around the mold cavity. This is because when the continuous fiber cloth pre-impregnated with resin is spread on the mold, it is impossible to spread the continuous fiber cloth It is very neat, and once the continuous fiber cloth is not laid neatly, it will cause problems such as the separation of the cloth and the material, the warping of the product, and the uneven product density; The surrounding area of ​​the carbon fiber cloth, the above is usually called overflow carbon fiber molding technology; in this way, after the product is formed and taken out of the mold, the extended edge needs to be cut off, but the edge of the cut product is relatively sharp, there is Potential safety hazards also require a subsequent edge polishing process; therefore, this existing manufacturing process has many processes and low production efficiency;

[0004] 2) Since the door outer panel is not a regular part, as attached figure 1 As shown in , there is a bend between the upper part and the lower part of the door panel, a concave door handle installation space is provided at the bend, and a through hole for installing a car window is provided on the upper part of the door panel; It is easy to cause the resin material to be unable to pass through the corner, which will cause defects in the molded product

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