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Ultrasonic micro-rolling additive manufacturing forming device and method for continuous fiber composite material

A continuous fiber and composite material technology, applied in the field of continuous fiber composite material ultrasonic micro-rolling additive manufacturing molding device, can solve the problems of poor strength of printed parts, high cost, insufficient mechanical properties between layers, etc., and achieve uniform and dense printing materials. , the effect of reducing internal defects and improving mechanical properties

Inactive Publication Date: 2022-04-08
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The traditional continuous fiber composite manufacturing requires a series of complex processes and high cost, the complexity of the formed components is limited, and the strength of the printed parts obtained by the traditional 3D printing molding method is poor, which makes the continuous fiber composite material limited in scope
The interlayer mechanical properties of continuous fiber-reinforced composite components formed by general planar layer-by-layer printing are insufficient, and shearing or delamination are prone to occur when impacted, which seriously affects the reliability of composite components and restricts continuous fiber composite materials. Application and Promotion of Components

Method used

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  • Ultrasonic micro-rolling additive manufacturing forming device and method for continuous fiber composite material
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  • Ultrasonic micro-rolling additive manufacturing forming device and method for continuous fiber composite material

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Embodiment Construction

[0027] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the words "inner" and "outer ” refer to directions towards or away from the geometric center of a particular part, respectively.

[0028] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0029] Such as Figure 1-4 As shown, the continuous fiber composite material ultrasonic micro-rolling additive manufacturing forming device is set above the resin-based continuous fiber additive manufacturing print, including mechanical arm 1 4, mechanical arm 2 2, u...

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Abstract

The invention discloses an ultrasonic micro-rolling additive manufacturing forming device and method for a continuous fiber composite material. The continuous fiber composite material is manufactured according to the following steps. The method comprises the following steps: 1) initializing; (2) continuous fiber material adding; (3) ultrasonic peening; (4) rolling and processing; (5) cooling; and finishing. Through the high-frequency impact of the ultrasonic device on the printing material and the flattening and compacting of the rolling device on the printing material, the density of the composite material additive manufacturing molded part is improved, the internal defects are reduced, the interlayer mechanical property of the composite material is improved, and finally the mechanical property of the part is improved; and the application value and the use prospect in the fields of aerospace, national defense and military industry, vehicles, ships and the like are further improved and widened.

Description

technical field [0001] The invention relates to the intersecting technical fields of composite materials and additive manufacturing, in particular to a continuous fiber composite material ultrasonic micro-rolling additive manufacturing molding device and method. Background technique [0002] In recent years, the research and development of composite materials has shown a rapid growth trend. Composite materials with resin as matrix and fiber as reinforcement, because of their high specific strength, long specific fatigue life and good designability, are widely used in aerospace, automobile and ship, national defense and civil industries The field of application is getting wider and wider. The traditional manufacturing of continuous fiber composites requires a series of complex processes and high cost, the complexity of the molded components is limited, and the strength of the printed parts obtained by the traditional 3D printing molding method is poor, which makes the contin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C64/165B29C64/188B33Y10/00B33Y40/00
Inventor 单忠德刘恺宋文哲范聪泽于肖
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS