Metal layer bionic microstructure fiber metal laminate capable of realizing resin self-infiltration

A technology of fiber metal laminates and metal layers, applied in the field of plate composite materials, can solve problems such as delamination and infiltration of laminate parts that cannot be effectively solved

Active Publication Date: 2021-06-29
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional metal surface treatment methods such as sandpaper grinding, sandblasting, anodizing, etc. can increase the metal surface roughness to a certain extent and enhance the bonding performance between metal and resin, but they still cannot effectively solve the problem of separation in the forming process o...

Method used

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  • Metal layer bionic microstructure fiber metal laminate capable of realizing resin self-infiltration
  • Metal layer bionic microstructure fiber metal laminate capable of realizing resin self-infiltration
  • Metal layer bionic microstructure fiber metal laminate capable of realizing resin self-infiltration

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The surface of the metal layer in contact with the fiber resin prepreg is infiltrated with microstructures such as figure 2 Shown: The microstructure on the surface of the metal layer is composed of a dense array of vertical tapered holes at a certain distance. The side of the tapered hole with a larger opening faces the resin side, and the side with a smaller opening faces the metal layer side. The size of the openings on both sides of the tapered hole and the depth of the tapered hole are determined by the actual infiltration effect of the resin in the tapered hole and the interlayer bonding performance of the laminate parts. After the metal layer is prepared, the metal layer, resin, and fiber reinforced material are laminated in a certain way. According to the way that the thermosetting resin laminate is heated and cured, and the thermoplastic resin laminate is heated to the viscous state of the resin and cooled and solidified, the laminate blank is cured at a certa...

Embodiment 2

[0023] The surface of the metal layer in contact with the fiber resin prepreg is infiltrated with microstructures such as image 3 Shown: the microstructure on the surface of the metal layer is composed of the main hole of the tapered hole and the secondary holes of the tapered hole distributed around the main hole. The main hole forms a certain angle with the auxiliary hole and the auxiliary hole, the main hole of the tapered hole is a through hole, and the auxiliary hole communicates with the main hole. The parameters and included angles of the main and auxiliary holes of the tapered hole are determined by the effect of resin infiltration and the bonding performance of the laminate part interface. After the metal layer is prepared, the metal layer, resin, and fiber reinforced material are laminated in a certain way. According to the way that the thermosetting resin laminate is heated and cured, and the thermoplastic resin laminate is heated to the viscous state of the resin...

Embodiment 3

[0025] The surface of the metal layer in contact with the fiber resin prepreg is infiltrated with microstructures such as Figure 4Shown: the microstructure on the surface of the metal layer is an Archimedes spiral or a logarithmic spiral pit structure. The pit track is an Archimedes spiral or a logarithmic spiral, and the microstructure pits are a regular dense array structure. The parameters and dimensions of the pit track are determined by the effect of resin infiltration and the bonding performance of the laminate interface. After the metal layer is prepared, the metal layer, resin, and fiber reinforced material are laminated in a certain way. According to the way that the thermosetting resin laminate is heated and cured, and the thermoplastic resin laminate is heated to the viscous state of the resin and cooled and solidified, the laminate blank is cured at a certain temperature, a certain pressure, and a certain degree of vacuum, and finally the required by the present ...

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PUM

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Abstract

The invention discloses a metal layer bionic microstructure fiber metal laminate capable of achieving resin self-infiltration, and belongs to the field of plate composite materials. The structure can effectively solve the problem of difficulty of infiltration of resin into deeper blind hole or blind pit microstructures in the surface of the metal layer of the fiber metal laminate, and the interlayer bonding performance of the metal matrix and the fiber prepreg is enhanced. The structure is composed of a vertical conical hole dense array structure which is of a spatial geometry asymmetric structure and is spaced by a certain distance, a multi-stage structure composed of a conical hole main hole and conical hole auxiliary holes, or a pit structure of an Archimedes spiral or logarithmic spiral track with different spatial curvatures, and a groove microstructure provided with an Archimedes spiral or logarithmic spiral track. The structure is mainly used for infiltrating resin into deeper blind hole or blind pit microstructures inthe surface of a metal layer of the fiber reinforced metal laminate, and the laminate is mainly used for manufacturing aviation covering parts such as fuselages, skins and the like of large aircrafts and high-speed aerospace vehicles in the field of aerospace manufacturing.

Description

technical field [0001] The invention proposes a metal layer bionic microstructure fiber metal laminate capable of realizing resin self-wetting, which belongs to the field of plate composite materials. Background technique [0002] With the development of aerospace manufacturing, civilian large wide-body airliners and military supersonic fighters are more and more in line with the needs of the development of the times and become the focus and focus of research and development for a considerable period of time in the future. With the improvement of the volume and speed of large aircraft, higher requirements are put forward for the lightweight of aircraft manufacturing materials. Fiber metal laminates rely on their high specific strength, specific stiffness, excellent fatigue performance, heat resistance and corrosion resistance and good The significant advantages of impact resistance, low density and light weight have become the focus of aviation manufacturing development rese...

Claims

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Application Information

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IPC IPC(8): B32B15/20B32B15/00B32B15/14B32B5/02B32B3/26B32B27/02B32B27/34B32B17/02B32B9/00B32B9/04B32B27/04
CPCB32B15/20B32B15/00B32B15/14B32B5/02B32B3/26B32B2262/0269B32B2262/101B32B2262/106B32B2260/021B32B2260/046B32B2605/18
Inventor 王耀侯迎朝陈海周张泉达胡宁魏强张绍君王伟
Owner HEBEI UNIV OF TECH
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