• Title/Summary/Keyword: Solid Freeform Fabrication system

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Development of Hybrid Fused Deposition Modeling System for Three-Dimensional Circuit Device Fabrication (3 차원 회로 장치 제작을 위한 FDM 기반의 통합 시스템 개발)

  • O, Sung Taek;Lee, In Hwan;Kim, Ho-Chan;Cho, Hae Yong
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.38 no.8
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    • pp.869-874
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    • 2014

  • It is possible to fabricate a three-dimensional (3D) shape using the solid freeform fabrication (SFF) technology. However, there are several problems in applying conventional SFF technologies to the direct manufacturing of a product. Hence, multimaterial SFF is gaining attention. Moreover, a 3D circuit device that is different from a conventional two-dimensional PCB can also be fabricated using multimaterial SFF. In this study, a hybrid system using fused deposition modeling and direct writing was designed for 3D circuit device fabrication.

  • https://doi.org/10.3795/KSME-A.2014.38.8.869 인용 PDF KSCI

A Study on Polyamide-6 Sintering and Effect by $CO_2$ Laser ($CO_2$ Laser에 의한 Polyamide-6 소결과 그 영향에 관한 연구)

  • Bae S.W.;Kim D.S.;Ahn Y.J.;Kim H.I.;Choi K.S.
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2006.05a
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    • pp.197-198
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    • 2006

  • In the solid freeform fabrication (SFF) system using selective laser sintering (SLS), polyamide-12 powder is currently recognized as general material. In this study, some kinds of polyamide-6 powders with different shape and particlesize were fabricated to investigate the formability, the microstructure and mechanical properties. Also, to develop a more elaborate and rapid system, this study employs a new SLS device with a 3-axis dynamic focusing scanner system instead of the existing fe lens used in commercial SLS. Polyamide-6 powders having the average size of 100 m were treated thermally in order to keep the spherical symmetry in shape. These polyamide-6 powders were mixed with polyamide-12 powders having the average size of 50 m to give the bimodal distribution of size. These mixed powders showed the better fabrication in the selective laser sintering process because the smaller particles of polyamide-11 played an important role in the compact packing of powders by filling the void space between the large particles of polyamide-6. Also, Experiments have performed to evaluate the effect of a scanning path and sintering parameters by fabricating the various 3D objects.

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SFFS 장비 개발을 위한 레이저 주사 시스템에 관한 연구

  • 최경현;최재원;김대현;도양회;이석희;김성종;김동수
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2004.05a
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    • pp.308-308
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    • 2004

  • 쾌속조형기술은 설계형상의 확인, 시작품의 제작, 금속 및 세라믹 부품에의 응용, 동시공학, 의료, 마이크로 머신 둥 제조업 전반에 걸쳐서 많은 응용이 이루어지고 있다 여러 가지의 기술들이 개발되고 이를 응용한 장비들이 생산되어 보급됨으로써 이러한 적용분야들은 점차 확대되고 있다. 본 연구에서는 분말을 소결, 적층하여 원하는 형상을 만들어내는 SLS(Selective Laser Sintering) 장비를 개발하는데 있어서 레이저 경로의 제어를 통한 분말을 소결시키는 부분인 레이저 주사 시스템(laser scanning system)을 개발하고자 한다.(중략)

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