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A continuous fiber reinforced composite material electromagnetic shielding structure 3D printing manufacturing method

A technology for strengthening composite materials and electromagnetic shielding structures, which is applied in the directions of manufacturing tools, additive manufacturing, and additive processing. It can solve the problems of not seeing relevant literature disclosures, and achieve excellent shielding effectiveness, strong mechanical bearing capacity, and reduced density. Effect

Active Publication Date: 2019-05-21
XI AN JIAOTONG UNIV
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  • Description
  • Claims
  • Application Information

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  • A continuous fiber reinforced composite material electromagnetic shielding structure 3D printing manufacturing method
  • A continuous fiber reinforced composite material electromagnetic shielding structure 3D printing manufacturing method

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Embodiment Construction

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0026] A continuous fiber reinforced composite electromagnetic shielding structure 3D printing manufacturing method, comprising the following steps:

[0027] 1) Establish a 3D model of the shielding structure: refer to figure 1 , according to the requirements of preparing the electromagnetic wave shielding performance test piece, and the convenience of further preparation of the test piece, use the computer-aided design software CAD Solidworks to build a 45 × 45 × 5 three-dimensional model of the original sample, and export the model as a file in stl format;

[0028] 2) Design conductive fiber path: According to the requirements of absorption attenuation (SEa), reflection loss (reflection attenuation, SEr) and overall shielding effectiveness (shielding effectiveness, SE) of the shielding structure, design and plan the conductive fiber inside t...

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Abstract

Provided is a 3D printing manufacturing method for an electromagnetic shielding structure made of a continuous fiber reinforced composite. The 3D printing manufacturing method comprises the steps that a three-dimensional model of the shielding structure is built firstly, then a conductive fiber path is designed, a 3D conductive fiber path is corrected, then a printing path of the shielding structure is generated, and finally the shielding structure is manufactured through 3D printing. The manufactured shielding structure has the high shielding effectiveness and the low density and further has the designability of the electromagnetic shielding performance and the mechanical performance, the electromagnetic shielding performance of the shielding structure can be controlled according to the requirements of application occasions, and meanwhile the adopted continuous fiber composite has the good mechanical performance.

Description

technical field [0001] The invention relates to the technical field of 3D printing of continuous fiber reinforced composite materials, in particular to a 3D printing manufacturing method of a continuous fiber reinforced composite material electromagnetic shielding structure. Background technique [0002] With the rapid development of electronic communication technology in modern society, the number of equipment using electromagnetic wave communication has increased dramatically, and the energy density of electromagnetic waves in the surrounding environment has increased year by year. Electromagnetic radiation will affect human daily life and physical health within a certain range, and will also interfere and infringe The normal operation of other electronic equipment reduces the reliability and stability of the equipment. Electromagnetic waves existing inside electronic communication equipment can also interfere with each other, causing the equipment itself to fail to work p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C64/118B29C64/386B29C64/393B33Y10/00B33Y50/00B33Y50/02C08L67/04C08L55/02C08L61/16C08L79/08C08K13/06C08K9/02C08K3/04C08K3/22C08K7/06C08J5/04C08J5/10B33Y70/00
CPCB33Y10/00B33Y50/00B33Y50/02B33Y70/00C08J5/041C08J5/042C08J5/10C08J2355/02C08J2361/16C08J2367/04C08J2379/08C08J2455/02C08J2461/16C08J2467/04C08J2479/08C08K2003/2275C08K2201/001C08L55/02C08L61/16C08L67/04C08L79/08C08L2203/20C08L2205/035C08K13/06C08K9/02C08K3/04C08K3/22C08K7/06
Inventor 田小永尚振涛尹丽仙
Owner XI AN JIAOTONG UNIV
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