Embedded forming technology for composite board, composite board and forming milling cutter

Abstract

The invention discloses an embedded forming technology for a composite board. The embedded forming technology for the composite board includes the following steps that S10, the fracture surface of a base plate is subjected to cutting work, so that an inward recessed part or an outward raised part is formed in the middle of the fracture surface; S20, the cut base plate is arranged in a female die; S30, a male die and the female die are subjected to die assembly, and an injection cavity is defined on the edge of the base plate by the male die and the female die in a surrounded mode; S40, injection molding resin is injected to the injection cavity surrounded by the male die and the female die; and S50, the dies are cooled so that the injection molding resin can be cured onto the fracture surface of the base plate. According to the embedded forming technology for the composite board, energy can be better saved, cooling time is shortened, and the forming cycle is shortened; and the base plate is hardly stressed by external force, deformation and stress concentration of the base plate cannot happen, stress is avoided, and the mechanical property and appearance quality of the composite board are improved.

Description

technical field [0001] The invention relates to the technical field of processing technology, in particular to a composite plate embedding molding process, a forming milling cutter and a composite plate. Background technique [0002] In the prior art, in order to facilitate the embedded molding of the composite board, the substrate in the composite board is composed of two carbon fiber board layers and a thermoplastic sandwich layer between the two carbon fiber board boards. The specific embedding molding process is as follows: firstly, the substrate is placed in the master mold, and then the substrate is heated in the master mold to soften the thermoplastic sandwich layer; secondly, the male mold and the female mold are clamped. In the process, the clamping force (pressure on the substrate) is used to make the convex structure of the male mold squeeze the edge of the carbon fiber sheet layer, so that the thermoplastic sandwich layer is deformed to protrude from the cross se...

AI Technical Summary

Problems solved by technology

[0004] 1. It is necessary to heat the entire plate and soften the thermoplastic sandwich layer before closing the mold, and in the process of mold closing, it is necessary to exert a large pressure on the substrate to extrude the thermoplastic sandwich layer, resulting in molding Long process cycle and large energy consumption

[0005] 2. During the molding process, the substrate is squeezed by clamping pressure, which causes the substrate to deform

After spraying, stress marks appear in the stress concentration area, which affects the appearance; microcracks appear in the product during the process of spraying, baking, transportation and storage, and stress release after heating

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