Preparation method of 3D printing shaping-free self-deforming shape memory intelligent material

A technology of 3D printing and deformation materials, which is applied in the direction of 3D object support structure, manufacturing tools, additive manufacturing, etc., to achieve the effect of simple process

Active Publication Date: 2021-03-09
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually, the shape memory effect needs to be artificially shaped under stimulus-driven conditions to trigger the shape memory effect. However, for some spatial structures and long-range applications, it is difficult to achieve folding deformation by artificial external force. In this case, self-deformation function becomes more important

Method used

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  • Preparation method of 3D printing shaping-free self-deforming shape memory intelligent material
  • Preparation method of 3D printing shaping-free self-deforming shape memory intelligent material
  • Preparation method of 3D printing shaping-free self-deforming shape memory intelligent material

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preparation example Construction

[0038] A method for preparing a 3D printing non-shaped self-deformable shape memory smart material of the present invention, the method comprising:

[0039] Step 1: Design the structure of the material, and use Solidworks to model the material in 3D;

[0040] Step 2: Slicing the model according to the design of step 1, converting and generating STL format files;

[0041] Step 3: Input the STL format file into the 3D printing system, set the printing path and 3D printing parameters, and the intersection angle between layers is 0°-180°;

[0042] Step 4: Using the fused deposition molding process, first restore the printing extrusion head and the bottom plate to the zero position, fine-tune the height of the extrusion head, and adjust the distance between the extrusion head and the bottom plate to 0.2mm-0.6mm, so that the material can be printed in 3D When pre-stretching the extruded filament, the restriction of the base plate or the adhesive layer allows the pre-stress to be pr...

Embodiment 1

[0058] see figure 1 and image 3 shown;

[0059] The design size is 100ⅹ10ⅹ0.5mm 3 Use Solidworks to model the deformed material in 3D, then slice the model according to the design, convert it into an STL format file, and input the STL format file into the 3D printing system; then set the printing angle to 0°, and the printer extrudes The diameter of the head is 0.4mm, the extrusion speed is 60mm / s, the temperature of the extrusion head is 195°C, the temperature of the bottom plate is 55°C, the filling rate is 100%, the thickness of the printing layer is 0.3mm, the crossing angle between layers is 90°, and the maximum printing material per second Volume 10mm 2 / s, the number of outer circles is 1, polylactic acid uses filamentary 3D printing filaments;

[0060] Firstly, restore the printing head and the bottom plate to the zero position, fine-tune the height of the extrusion head so that the distance between the extrusion head and the bottom plate is 0.4mm, and then print....

Embodiment 2

[0062] see figure 2 and Figure 4 shown;

[0063] The design size is 100ⅹ10ⅹ0.5mm 3 Use Solidworks to model the deformed material in 3D, then slice the model according to the design, convert it into an STL format file, and input the STL format file into the 3D printing system; then set the printing angle to 45°, and the printer squeezes The diameter of the nozzle is 0.4mm, the extrusion speed is 60mm / s, the temperature of the extrusion head is 195°C, the temperature of the bottom plate is 55°C, the filling rate is 100%, the thickness of the printing layer is 0.3mm, the crossing angle between layers is 90°, and the maximum printing per second Material volume 10mm 2 / s, the number of outer circles is 1, polylactic acid uses filamentary 3D printing filaments;

[0064] Firstly, restore the printing head and the bottom plate to the zero position, fine-tune the height of the extrusion head so that the distance between the extrusion head and the bottom plate is 0.4mm, and then p...

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Abstract

The invention discloses a preparation method of a 3D printing shaping-free self-deforming shape memory intelligent material. The method comprises the steps that firstly, the structure of the materialis designed, and three-dimensional modeling is conducted on the material by using Solidworks; secondly, the model is sliced according to the design, and an STL format file is generated by means of conversion; thirdly, the STL format file is input into a 3D printing system, a printing path and 3D printing parameters are set, and the interlayer crossing angle is 0-180 degrees; fourthly, a fused deposition modeling process is adopted, wherein a printing extrusion head and a bottom plate are restored to zero positions firstly, the height of the extrusion head is finely adjusted, the distance between the extrusion head and the bottom plate is adjusted to be 0.2mm-0.6mm, so that extrusion wires are pre-stretched when the material is subjected to 3D printing, the prestress is stored in the material due to the limitation of the bottom plate or a bonding layer, and the temporary shape of the material can be fixed; fifthly, printing is conducted; and sixthly, the printed material is heated to reach temperature higher than glass-transition temperature; According to the preparation method, high-precision shaping can be realized, and multi-mode and diversified self-deformation can be realized.

Description

technical field [0001] The invention relates to the technical field of chemical synthesis, in particular to a method for preparing a 3D printing shapeless self-deformable shape memory intelligent material. Background technique [0002] 3D printing, also known as additive manufacturing, is a kind of rapid prototyping technology. It is different from the traditional processing mode of raw material removal, cutting, and assembly. It is based on digital model files and uses powdered metal or plastic. Adhesive materials, a manufacturing method by layer-by-layer printing and superposition, have the advantages of saving materials, reducing production costs, shortening product development cycles, improving production efficiency, and having high precision. The rapid development of 3D printing technology in recent years has enabled a better integration of the structural design of smart materials and the advantages of 3D printing, providing theories and technologies for the design and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C64/118B29C64/386B33Y10/00B33Y50/00
CPCB29C64/118B29C64/386B33Y10/00B33Y50/00
Inventor 梁云虹张澜林兆华张志辉任雷
Owner JILIN UNIV
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