A Study on Fabrication of Curved Molded-Interconnect Device Using Thermoresponsive 4D Printing

Ju Yoen Lee; Min Jong Lee; Yong Woo Son; Jeong Hun Yoon; Keun Park

doi:10.3795/KSME-A.2023.47.3.229

A Study on Fabrication of Curved Molded-Interconnect Device Using Thermoresponsive 4D Printing

Ju Yoen Lee
, Min Jong Lee
, Yong Woo Son
, Jeong Hun Yoon
, Keun Park

Dept. of Mechanical System and Design Engineering

Seoul National University

Research output: Contribution to journal › Article › peer-review

Abstract

4D printing is an advanced application of 3D printing with additional shape changes over time, which deforms additively manufactured parts using external stimuli. In this study, a thermoresponsive 4D printing method was developed to fabricate a molded-interconnect device (MID) with a curved shape. For this purpose, a flat MID keypad was designed to contain conductive circuits in a nonconductive plastic base. The flat MID keypad frame was then additively manufactured using a material extrusion (ME)-type 3D printer, by interactively inserting several conductors during the printing process. In ME-type printing, printing paths were programmed to have planar thermal anisotropy and thus induce bending deformation under thermal stimuli. A curved fixture was designed to install a hot air gun and thus guide thermal deformation to have the desired curvature, from which a facile 4D printing method could be developed with high dimensional accuracy and repeatability.

Original language	English
Pages (from-to)	229-236
Number of pages	8
Journal	Transactions of the Korean Society of Mechanical Engineers, A
Volume	47
Issue number	3
DOIs	https://doi.org/10.3795/KSME-A.2023.47.3.229
State	Published - May 2023

Keywords

3D Printing
4D Printing
Additive Manufacturing
Material Extrusion
Molded Interconnect Device

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.3795/KSME-A.2023.47.3.229

Cite this

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title = "A Study on Fabrication of Curved Molded-Interconnect Device Using Thermoresponsive 4D Printing",

abstract = "4D printing is an advanced application of 3D printing with additional shape changes over time, which deforms additively manufactured parts using external stimuli. In this study, a thermoresponsive 4D printing method was developed to fabricate a molded-interconnect device (MID) with a curved shape. For this purpose, a flat MID keypad was designed to contain conductive circuits in a nonconductive plastic base. The flat MID keypad frame was then additively manufactured using a material extrusion (ME)-type 3D printer, by interactively inserting several conductors during the printing process. In ME-type printing, printing paths were programmed to have planar thermal anisotropy and thus induce bending deformation under thermal stimuli. A curved fixture was designed to install a hot air gun and thus guide thermal deformation to have the desired curvature, from which a facile 4D printing method could be developed with high dimensional accuracy and repeatability.",

keywords = "3D Printing, 4D Printing, Additive Manufacturing, Material Extrusion, Molded Interconnect Device",

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year = "2023",

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doi = "10.3795/KSME-A.2023.47.3.229",

language = "English",

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AU - Yoon, Jeong Hun

AU - Park, Keun

PY - 2023/5

Y1 - 2023/5

N2 - 4D printing is an advanced application of 3D printing with additional shape changes over time, which deforms additively manufactured parts using external stimuli. In this study, a thermoresponsive 4D printing method was developed to fabricate a molded-interconnect device (MID) with a curved shape. For this purpose, a flat MID keypad was designed to contain conductive circuits in a nonconductive plastic base. The flat MID keypad frame was then additively manufactured using a material extrusion (ME)-type 3D printer, by interactively inserting several conductors during the printing process. In ME-type printing, printing paths were programmed to have planar thermal anisotropy and thus induce bending deformation under thermal stimuli. A curved fixture was designed to install a hot air gun and thus guide thermal deformation to have the desired curvature, from which a facile 4D printing method could be developed with high dimensional accuracy and repeatability.

AB - 4D printing is an advanced application of 3D printing with additional shape changes over time, which deforms additively manufactured parts using external stimuli. In this study, a thermoresponsive 4D printing method was developed to fabricate a molded-interconnect device (MID) with a curved shape. For this purpose, a flat MID keypad was designed to contain conductive circuits in a nonconductive plastic base. The flat MID keypad frame was then additively manufactured using a material extrusion (ME)-type 3D printer, by interactively inserting several conductors during the printing process. In ME-type printing, printing paths were programmed to have planar thermal anisotropy and thus induce bending deformation under thermal stimuli. A curved fixture was designed to install a hot air gun and thus guide thermal deformation to have the desired curvature, from which a facile 4D printing method could be developed with high dimensional accuracy and repeatability.

KW - 3D Printing

KW - 4D Printing

KW - Additive Manufacturing

KW - Material Extrusion

KW - Molded Interconnect Device

UR - https://www.scopus.com/pages/publications/85153079304

U2 - 10.3795/KSME-A.2023.47.3.229

DO - 10.3795/KSME-A.2023.47.3.229

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JO - Transactions of the Korean Society of Mechanical Engineers, A

JF - Transactions of the Korean Society of Mechanical Engineers, A

IS - 3

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A Study on Fabrication of Curved Molded-Interconnect Device Using Thermoresponsive 4D Printing

Abstract

Keywords

UN SDGs

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