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Connecting structure of round metal part and fiber reinforced composite material

A connection structure and fiber-reinforced technology, which is applied in the field of connection methods of different components, can solve the problems of large difference in thermal expansion coefficient between metals and easy interface peeling.

Inactive Publication Date: 2020-10-27
XIANNING HAIWEI COMPOSITE MATERIAL PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 2) During its application, it is unavoidable to be composited and connected with metal, but its thermal expansion coefficient, modulus and many other properties are quite different from those of metal. Its interface is easy to peel off, which has become one of the biggest problems restricting its composite application with metal materials

Method used

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  • Connecting structure of round metal part and fiber reinforced composite material
  • Connecting structure of round metal part and fiber reinforced composite material
  • Connecting structure of round metal part and fiber reinforced composite material

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Experimental program
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Embodiment Construction

[0021] Below in conjunction with accompanying drawing, the present invention will be further described:

[0022] as above figure 2 , image 3 , the interface between the circular metal part and the composite material has the following gain design:

[0023] 1) Add a certain number of grooves 3 on the contact surface between the circular metal part 2 and the circular composite material 1, on the one hand to increase the bonding area, and on the other hand to embed and connect the composite material;

[0024] 2) The bonding interface is changed from a smooth surface to a rough surface, which greatly increases the bonding area and improves the bonding strength;

[0025] 3) When laying the fiber in the groove, the fiber filaments are wound in the groove 3 and diverged into an umbrella shape, the schematic diagram is as follows image 3 As shown, the divergent fiber filaments 32 and the fiber cloth 33 are laid alternately, and then vacuum forming is used to connect the fiber fil...

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PUM

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Abstract

The invention discloses a connecting structure of a round metal part and a fiber reinforced composite material. The connecting structure comprises the round metal part and a composite material plate.A connecting device is arranged between the round metal part and a metal plate. A plurality of grooves are formed in the connecting face of the metal plate. When fibers in the grooves are laid, fiberbundles are placed in the grooves, and fiber filaments connected with the fiber bundles are distributed in an umbrella shape and placed in fiber cloth. The connecting device is filled and cured by using a vacuum assisted forming process and negative pressure adsorption resin. The connecting structure has the beneficial effects that 1) the problem that the composite material plate cannot be connected with a cylindrical metal material interface is solved; and 2) the fiber bundles in the grooves and the fiber filaments distributed in the umbrella shape and in the fiber cloth are integrally connected through vacuum assisted forming.

Description

technical field [0001] The invention relates to a connection method of different components, in particular to a connection structure between a composite material plate and a metal. Background technique [0002] 1) Fiber-reinforced composite materials have the characteristics of high strength, light weight, corrosion resistance, and excellent designability, and are more and more widely used in high-end industries such as aviation, aerospace, ships, and automobiles. [0003] 2) During its application, it is unavoidable to be composited and connected with metal, but its thermal expansion coefficient, modulus and many other properties are quite different from those of metal. Its interface is easy to peel off, which has become one of the biggest problems restricting its composite application with metal materials. [0004] 3) In this scheme, a typical fiber-reinforced composite material and metal composite connection structure is designed, which can effectively solve the problem ...

Claims

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Application Information

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IPC IPC(8): B29C70/68B29C70/84
CPCB29C70/683B29C70/84
Inventor 王大世王智黄大庆李德华王利叶青鲁程
Owner XIANNING HAIWEI COMPOSITE MATERIAL PROD
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