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)

Access to Document

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.",

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AU - Park, Keun

PY - 2023/5

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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

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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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