Non-rivet riveting device and method for carbon fiber composite material and aluminum alloy

A rivetless riveting and composite material technology, which is applied in the field of composite material riveting, can solve the problems of matrix cracking, fiber breakage, and low joint performance, and achieve the effects of improving tensile strength, reducing damage, and reducing quality
CN108380765AActive Publication Date: 2018-08-10JILIN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JILIN UNIV
Publication Date
2018-08-10

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Abstract

The invention discloses a non-rivet riveting device and method for a carbon fiber composite material and an aluminum alloy and belongs to the technical field of composite material riveting. The technical problems that in the prior art, fiber breakage, matrix cracking and interface degumming and layering are likely to occur and the joint performance is low are solved. The device comprises a blank holder, a punch and a concave mold. The concave mold comprises a first spring cushion block, a second spring cushion block, a first spring, a second spring and a lower mold body. The non-rivet rivetingprocess of the carbon fiber composite material and the aluminum alloy is achieved through the device. By means of the process, an aluminum alloy plate forms a self-locking structure at a through holeof a carbon fiber composite material plate, the anti-tension, anti-shear and anti-fatigue properties of a joint are improved, riveting elements like rivets are not needed, and the mass is reduced.
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Description

technical field

[0001] The invention belongs to the technical field of riveting of composite materials, and in particular relates to a rivetless riveting device and method for carbon fiber composite materials and aluminum alloys. Background technique

[0002] Safe, energy-saving and environment-friendly automobiles have become the mainstream of automobile development in the 21st century. Automobile lightweight is undoubtedly the best way, and one of the mainstream materials for automobile lightweight is lightweight materials such as aluminum alloy and composite materials for automobiles, especially Composite materials are the preferred materials for new energy vehicles. Because of their low material density, high specific strength, and high specific stiffness, they are very suitable for the research and development needs of new energy vehicles.

[0003] At the same time, the non-destructive connection of composite materials and metal materials is an important assembly proble...

Claims

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