Composite material 3D printing equipment and method based on multi-material functional structure

By using wide-stretch yarn prepreg and coding electrostatic spraying technology in composite material 3D printing equipment, the precise distribution of fibers and functional fillers is solved, and the problem that the existing technology is difficult to take into account the various functional needs of composite materials is realized, and high-performance manufacturing of functional integrated composite materials is achieved.

CN119636057APending Publication Date: 2025-03-18XI AN JIAOTONG UNIV
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Patent Information

Application Number
CN202411987425.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-03-18

AI Technical Summary

Technical Problem

Existing additive manufacturing technologies are difficult to take into account the various functional needs of composite materials at the same time, such as mechanical properties, electric and thermal characteristics and environmental adaptability, and are unable to achieve structural-functional integrated composite manufacturing.

Method used

Using composite material 3D printing equipment based on multi-material functional structure, the precise distribution and combination of fibers and functional fillers are achieved through wide-spread yarn prepreg and coding electrostatic spraying technology, and combined with cooling and thermal treatment of 3D printing modules, functionally integrated composite materials are produced.

Benefits of technology

The versatility and high performance of composite materials are achieved, and the mechanical properties, electrical and thermal characteristics and environmental adaptability of composite materials can be improved at the same time, meeting the application needs of composite or multiple functions.

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Abstract

A composite material 3D printing device and method based on a multi-material functional structure comprises a broadened yarn presoaking module, a coding electrostatic spraying module and a 3D printing module, an ultra-broadened presoaked printing tow is obtained in a vibration yarn spreading mode, localized distribution of functional filler on continuous fibers is achieved through coding electrostatic spraying, and the 3D printing module is used for conducting 3D printing. And finally, a continuous fiber / functional filler mixed multifunctional composite material structure is formed in a layer-by-layer printing mode, the problem that a functional structure in a multi-material composite material is difficult to distribute in a localized mode can be solved, and then a key technology and equipment are provided for manufacturing of a structure-function integrated composite material.
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