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In-situ manufacturing method of continuous fiber reinforced soft and hard mixed thermoplastic-based component

A continuous fiber, soft-hard hybrid technology, applied in the field of in-situ manufacturing of continuous fiber-reinforced soft-hard hybrid thermoplastic base components, can solve the problems of poor interface fusion of soft-hard hybrid materials, poor mechanical properties of soft-hard hybrid materials, etc. Chemical printing requirements, good mechanical properties, good fusion effect

Active Publication Date: 2021-11-05
ZHEJIANG UNIV
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Problems solved by technology

[0006] The invention provides an in-situ manufacturing method of a continuous fiber reinforced soft-hard mixed thermoplastic base component, which solves the problems of poor mechanical properties of soft-hard mixed materials and poor interface fusion of soft-hard mixed materials

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  • In-situ manufacturing method of continuous fiber reinforced soft and hard mixed thermoplastic-based component
  • In-situ manufacturing method of continuous fiber reinforced soft and hard mixed thermoplastic-based component
  • In-situ manufacturing method of continuous fiber reinforced soft and hard mixed thermoplastic-based component

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Embodiment Construction

[0035] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be noted that the following embodiments are intended to facilitate the understanding of the present invention, but do not limit it in any way.

[0036] Such as figure 1 As shown, a continuous fiber reinforced soft-hard hybrid thermoplastic matrix member in-situ manufacturing method, including:

[0037] Step 1, input the model that needs to be manufactured and the corresponding process parameters: including layer thickness δ, interpolation accuracy I, nozzle posture P in the printing coordinate system N , printing speed S and nozzle control temperature T, etc.

[0038] Step 2: Slicing the input model according to the input layer thickness δ to obtain an initial slice path Path with n layers.

[0039] Step 3, calculate and obtain the center point P of the first layer of the slice path Path c , and bias the Path to P c The coordinate sy...

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Abstract

The invention discloses an in-situ manufacturing method of a continuous fiber reinforced soft and hard mixed thermoplastic-based component. The in-situ manufacturing method comprises the following steps of (1) inputting a model needing additive manufacturing and process parameters; (2) slicing the input model to obtain an initial slicing path with n layers; (3) calculating to obtain a central point Pc of a first layer of the slicing path, and offsetting the slicing path Path to a coordinate system taking the Pc as an original point; (4) interpolating the path of each layer to a specified precision, wherein the interpolated path is PathI; (5) calculating the angle theta required by the PathI to reach the specified attitude alpha of a nozzle, and readjusting the seam between the starting point and the end point of each layer of path of the PathI to obtain Pathend; and (6) converting the Pathend into polar coordinates to be expressed, printing paths Px, y, z and generating theta of a four-axis printer, and generating control codes of the four-axis printer according to the printing speed S and the nozzle control temperature T. According to the in-situ manufacturing method, the problems of poor mechanical property and poor interface fusion of the soft and hard mixed material are solved.

Description

technical field [0001] The invention relates to the field of fiber composite additive manufacturing, in particular to an in-situ manufacturing method of continuous fiber reinforced soft and hard mixed thermoplastic matrix components. Background technique [0002] At present, 3D printing focuses on printing a single material, and optimizing the single-material printing process parameters is the key point, such as studying the influence of printing layer thickness, printing direction and printing speed on the performance of printed parts, but the optimal state of optimizing these process parameters is to fully exert The mechanical properties of a single material itself, but usually the performance and price of a single material are contradictory. It is a common method to further improve the mechanical properties of printed parts with a certain cost performance. Mixing with other materials into composite materials is a common method. The most important thing is to mix with fibe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C64/165B29C64/209B29C64/227B33Y30/00B33Y70/10
CPCB29C64/165B29C64/209B29C64/227B33Y30/00B33Y70/10
Inventor 栾丛丛牛成成沈洪垚傅建中姚鑫骅徐冠华
Owner ZHEJIANG UNIV
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