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Fabrication of a Hot-Embossing Metal Micro-Mold through Laser Shock Imprinting

As a technology for polymer surface fabrication, roll-to-roll hot embossing has been widely used because of its advantages, such as its low cost and high efficiency. However, the metal micro-mold is a major factor that determines the hot embossing of the polymer. In this study, a new metal micro-mol...

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Autores principales: Yang, Haifeng, Hao, Jingbin, Wang, Haoda, Ding, Mengsen
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10383624/
https://www.ncbi.nlm.nih.gov/pubmed/37512353
http://dx.doi.org/10.3390/ma16145079
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author Yang, Haifeng
Hao, Jingbin
Wang, Haoda
Ding, Mengsen
author_facet Yang, Haifeng
Hao, Jingbin
Wang, Haoda
Ding, Mengsen
author_sort Yang, Haifeng
collection PubMed
description As a technology for polymer surface fabrication, roll-to-roll hot embossing has been widely used because of its advantages, such as its low cost and high efficiency. However, the metal micro-mold is a major factor that determines the hot embossing of the polymer. In this study, a new metal micro-mold manufacturing method is proposed. The metal micro-mold is produced using laser shock imprinting (LSI) on the surface of metal foil. It has the characteristics of good thermal stability and high strength. During our LSI experiment, the strength of the mold increased after laser shocking. In this study, copper foils of different thicknesses were selected for LSI experiments. Through the analysis of the profile and forming depth of the microstructure, combined with the numerical simulation of the forming mechanism of copper foils with different thicknesses using ABAQUS software(Abaqus 2021), a copper foil with a flat back was selected as the final metal micro-mold. On this basis, copper molds with different microstructure shapes were created. Then, the mold was used in the hot-embossing experiment to manufacture the microstructure on the surface of polyethylene terephthalate (PET) and to study the fidelity and integrity of the molded microstructure. The deformation resistance of the copper mold under hot-embossing conditions was verified through a nano-indentation experiment. The final results show that the metal micro-mold produced via LSI had a high accuracy and molding stability and has potential applications in the field of roll-to-roll hot embossing.
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spelling pubmed-103836242023-07-30 Fabrication of a Hot-Embossing Metal Micro-Mold through Laser Shock Imprinting Yang, Haifeng Hao, Jingbin Wang, Haoda Ding, Mengsen Materials (Basel) Article As a technology for polymer surface fabrication, roll-to-roll hot embossing has been widely used because of its advantages, such as its low cost and high efficiency. However, the metal micro-mold is a major factor that determines the hot embossing of the polymer. In this study, a new metal micro-mold manufacturing method is proposed. The metal micro-mold is produced using laser shock imprinting (LSI) on the surface of metal foil. It has the characteristics of good thermal stability and high strength. During our LSI experiment, the strength of the mold increased after laser shocking. In this study, copper foils of different thicknesses were selected for LSI experiments. Through the analysis of the profile and forming depth of the microstructure, combined with the numerical simulation of the forming mechanism of copper foils with different thicknesses using ABAQUS software(Abaqus 2021), a copper foil with a flat back was selected as the final metal micro-mold. On this basis, copper molds with different microstructure shapes were created. Then, the mold was used in the hot-embossing experiment to manufacture the microstructure on the surface of polyethylene terephthalate (PET) and to study the fidelity and integrity of the molded microstructure. The deformation resistance of the copper mold under hot-embossing conditions was verified through a nano-indentation experiment. The final results show that the metal micro-mold produced via LSI had a high accuracy and molding stability and has potential applications in the field of roll-to-roll hot embossing. MDPI 2023-07-19 /pmc/articles/PMC10383624/ /pubmed/37512353 http://dx.doi.org/10.3390/ma16145079 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Yang, Haifeng
Hao, Jingbin
Wang, Haoda
Ding, Mengsen
Fabrication of a Hot-Embossing Metal Micro-Mold through Laser Shock Imprinting
title Fabrication of a Hot-Embossing Metal Micro-Mold through Laser Shock Imprinting
title_full Fabrication of a Hot-Embossing Metal Micro-Mold through Laser Shock Imprinting
title_fullStr Fabrication of a Hot-Embossing Metal Micro-Mold through Laser Shock Imprinting
title_full_unstemmed Fabrication of a Hot-Embossing Metal Micro-Mold through Laser Shock Imprinting
title_short Fabrication of a Hot-Embossing Metal Micro-Mold through Laser Shock Imprinting
title_sort fabrication of a hot-embossing metal micro-mold through laser shock imprinting
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10383624/
https://www.ncbi.nlm.nih.gov/pubmed/37512353
http://dx.doi.org/10.3390/ma16145079
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AT dingmengsen fabricationofahotembossingmetalmicromoldthroughlasershockimprinting