Four-Dimensional Printing Method Using Thermal Anisotropy and Thermal Transformation, and the Resulting Product

Active Publication Date: 2020-09-10
FOUND FOR RES & BUSINESS SEOUL NAT UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0026]The present invention described above has an advantage of implementing a 4D printed product having a desired transformed shape by artificially imparting a desired anisotropy to a 3D printed product using genera

Problems solved by technology

Therefore, it was difficult to commercially use the techniques of 4D printing in various industrial fields.
However, this method has limitations in commercial success and marketability because it also requires a dedicated 3D printer manufactured to print multiple materials or a smart material.
Anothe

Method used

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  • Four-Dimensional Printing Method Using Thermal Anisotropy and Thermal Transformation, and the Resulting Product
  • Four-Dimensional Printing Method Using Thermal Anisotropy and Thermal Transformation, and the Resulting Product
  • Four-Dimensional Printing Method Using Thermal Anisotropy and Thermal Transformation, and the Resulting Product

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Embodiment Construction

[0043]Unless the context clearly indicates otherwise, it will be further understood that the terms “comprises”, “comprising,”, “includes” and / or “including”, when used herein, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. Also, the terms “˜part”, “˜unit”, “module”, “apparatus” and the like mean a unit for processing at least one function or operation and may be implemented by a combination of hardware and / or software.

[0044]Hereinafter, preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

[0045]FIG. 1 is a flowchart illustrating a 4D printing method using thermal anisotropy and thermal transformation, according to one embodiment of the present invention.

[0046]Referring to FIG. 1, the 4D printing method according to the

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Abstract

Disclosed are a 4D printing method using thermal anisotropy and thermal transformation, and the resulting product. The method includes (a) artificially planning transverse printing paths and longitudinal printing paths on a specimen to impose a thermal anisotropy to the specimen, (b) sequentially and alternately forming transversely printed layers and longitudinally printed layers on the specimen by printing a thermoplastic polymer in transverse and longitudinal directions to build a 3D printed product, (c) heating the 3D printed product so that the 3D printed product thermally transforms in a specific direction, and (d) controlling heating time to obtain a 4D printed product having a desired final shape which is formed through the transformation of the 3D printed product over the heating time.

Description

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Claims

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Application Information

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Owner FOUND FOR RES & BUSINESS SEOUL NAT UNIV OF SCI & TECH
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