Friction riveting device for thermoplastic carbon fiber composite material and aluminum alloy and riveting method of friction riveting device

A technology of composite materials and riveting devices, which can be applied to other household appliances, household components, household appliances, etc., and can solve problems such as connection failure, cracks, and small plastic deformation
CN112810169APending Publication Date: 2021-05-18JILIN UNIV
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
JILIN UNIV
Publication Date
2021-05-18

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Abstract

The invention discloses a friction riveting device for a thermoplastic carbon fiber composite material and an aluminum alloy. The friction riveting device comprises a female die, a blank holder and a driving rod. The lower part of the female die is of a solid cylindrical structure, the center of the upper part of the female die is provided with a circular groove, and the bottom face of the circular groove protrudes upwards to form a conical shape. The blank holder is of a cylindrical structure, a cylindrical center hole is formed in the center of the blank holder, and the blank holder is arranged above the female die and is coaxial with the female die. The driving rod is coaxially arranged in the center hole and can perform rotary motion and axial feeding motion along the center hole. The invention further discloses a riveting method of the friction riveting device for the thermoplastic carbon fiber composite material and the aluminum alloy, heat is generated through rotating friction, meanwhile, the rotating speed and the axial feeding speed of the rivet are adjusted, and therefore the optimal rivet welding state value between the thermoplastic carbon fiber composite material plate and the aluminum alloy plate can be achieved, and the joint strength and the joint forming effect are improved.
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Description

technical field

[0001] The invention relates to the technical field of riveting of a thermoplastic carbon fiber composite material plate and an aluminum alloy plate, and more specifically, the invention relates to a friction riveting device and a riveting method for a thermoplastic carbon fiber composite material and aluminum alloy plate. Background technique

[0002] Under the requirements of automobile lightweight, composite materials and light alloy materials are used as the main lightweight materials in light structure products. Thermoplastic carbon fiber composites have outstanding characteristics such as high toughness, high impact resistance and damage tolerance, unlimited prepreg storage period, short molding cycle, recyclable utilization, and easy repair. They have the advantages of environmental protection, high efficiency and high performance. The application is more and more extensive.

[0003] As thermoplastic carbon fiber composites are more and more widely us...

Claims

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