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A kind of additive manufacturing method of continuous fiber reinforced composite material

A technology for reinforcing composite materials and continuous fibers, applied in the field of additive manufacturing, can solve the problems of inaccurate fiber arrangement and slow printing speed, and achieve the effect of improving mechanical properties and increasing manufacturing speed.

Active Publication Date: 2022-07-05
SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the deficiencies in the prior art above, the purpose of the present invention is to provide a continuous fiber reinforced composite material additive manufacturing method, aiming to solve the problems of slow printing speed and inaccurate fiber arrangement in the prior art

Method used

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  • A kind of additive manufacturing method of continuous fiber reinforced composite material
  • A kind of additive manufacturing method of continuous fiber reinforced composite material
  • A kind of additive manufacturing method of continuous fiber reinforced composite material

Examples

Experimental program
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Effect test

Embodiment 1

[0069] For cuboid parts, a method for additive manufacturing of continuous fiber-reinforced composite materials, comprising the following steps:

[0070] a) The data of the three-dimensional component of the cuboid part is layered and discretized, and the cuboid part to be printed is defined as a cuboid part with a length of 60mm, a width of 18mm and a height of 1.2mm. The material is selected from Toray T300B 1000K carbon fiber bundle and 0.06mm thick PLA (polylactic acid) film material. After discrete processing of the three-dimensional data of the cuboid parts with commercial software, the path is planned and the sewing data of each layer is formulated. The control system controls the sewing device according to the The layer sewing data sews the continuous fibers onto the base film. Among them, the sewing path is figure 2 Single-track reciprocating linear scanning mode, the layer thickness is 0.06mm, and the scanning distance is 1mm.

[0071] b) The control system sends ...

Embodiment 2

[0074] The material is made of 200D aramid fiber and 0.06mm thick PLA film material.

[0075] The manufacturing method and the shape of the parts are the same as those in Example 1.

Embodiment 3

[0077] The material is 400D aramid fiber and 0.06mm thick PLA film material.

[0078] The manufacturing method and the shape of the parts are the same as those in Example 1.

[0079] To sum up, the present invention provides an additive manufacturing method for continuous fiber reinforced composite materials. The method of the invention can precisely control the arrangement of the continuous fibers in the continuous fiber reinforced composite material, can control the volume content of the continuous fibers and improve the mechanical properties of the composite material. Different from the sequential solidification method of other composite material additive manufacturing from point to line, and then from line to surface, the present invention is based on the surface as the basic unit, which is formed layer by layer. It can greatly improve the manufacturing speed of continuous fiber reinforced composite materials by running the multi-layer parallel processing and then realizi...

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Abstract

The invention discloses an additive manufacturing method of continuous fiber reinforced composite material. Including the steps: A. the continuous fibers are formed on the base film by sewing; B, the peripheral contour cutting process is performed on the base film with continuous fibers, until the desired contour is cut out of the base film with continuous fibers; C, the The cut matrix films with continuous fibers are sequentially stacked and bonded; the above steps A, B and C are repeated until the continuous fiber reinforced composite material is obtained. The method of the invention can precisely control the arrangement of the continuous fibers in the continuous fiber reinforced composite material, can control the volume content of the continuous fibers and improve the mechanical properties of the composite material. Different from the sequential solidification method of other composite material additive manufacturing from point to line, and then from line to surface, the present invention only needs to process the outer contour of each layer, and can process multiple layers in parallel at the same time, which can greatly improve the continuous fiber reinforced composite material. manufacturing speed.

Description

technical field [0001] The invention relates to the field of additive manufacturing, in particular to a method for additive manufacturing of continuous fiber reinforced composite materials. Background technique [0002] Continuous fiber-reinforced polymer matrix composites have the advantages of high specific strength, high specific stiffness, and strong designability, and have been widely used in aerospace, military and other fields. Additive manufacturing technology is an emerging molding process based on the discrete-buildup principle. Because additive manufacturing technology can freely form complex parts with high efficiency and low cost while giving great freedom of design, it is gradually applied to continuous fiber-reinforced polymer matrix composites molding. Compared with traditional molding technologies such as resin transfer molding, molding, and hot pressing, continuous fiber-reinforced polymer matrix composites formed by additive manufacturing technology have ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C64/147B29C64/393B29C64/314B29C64/379B33Y10/00B33Y40/10B33Y40/20B33Y50/02B29C65/62B29C65/64B29C65/74
CPCB29C64/147B29C64/393B29C64/314B29C64/379B33Y10/00B33Y40/10B33Y40/20B33Y50/02B29C65/62B29C65/64B29C66/7444B29C65/74B29C65/7473
Inventor 熊异王耀辉周利民张国权刘光
Owner SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA