• Title/Summary/Keyword: 3D-printing technology

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Analysis of Chung-Buk Regional Industry Trends -Focused on Machinery Part Industry and Medial Instrument Industry (충북지역 특화산업 현황 분석 -기계부품(자동차), 의료기기산업을 중심으로)

  • Lee, Hyoung-wook;Seo, JunHyeok;Park, Sung-jun;Bae, Sungmin
    • Journal of Institute of Convergence Technology
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    • v.6 no.2
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    • pp.41-46
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    • 2016
  • Based on Regional Industry Development Plan in 2014, machinery part industry and medical instrument industry has been designated as core industries of Chung-buk area. Machinery part industry plays an important role in economic growth of chung-buk area and it has been faced with signigicant changes - such as SMART factory and IoT(Internet of things). Also, medical instrument industry with 3D printing technology grows rapidly in Chung-buk area. It is believed that medical instrument could be next cash-cow items for Chung-buk area. In this paper, we survey, analyze and summarize the current machinery part industry and medical instrument industry focused on Chunk-buk Area.

Innovation and craft in a climate of technological change and diffusion

  • Hann, Michael A.
    • The Research Journal of the Costume Culture
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    • v.25 no.5
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    • pp.708-717
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    • 2017
  • Industrial innovation in Britain, during the eighteenth and nineteenth centuries, stimulated the introduction of the factory system and the migration of people from rural agricultural communities to urban industrial societies. The factory system brought elevated levels of economic growth to the purveyors of capitalism, but forced people to migrate into cities where working conditions in factories were, in general, harsh and brutal, and living conditions were cramped, overcrowded and unsanitary. Industrial developments, known collectively as the 'Industrial Revolution', were driven initially by the harnessing of water and steam power, and the widespread construction of rail, shipping and road networks. Parallel with these changes, came the development of purchasing 'middle class', consumers. Various technological ripples (or waves of innovative activity) continued (worldwide) up to the early-twenty-first century. Of recent note are innovations in digital technology, with associated developments, for example, in artificial intelligence, robotics, 3-D printing, materials technology, computing, energy storage, nano-technology, data storage, biotechnology, 'smart textiles' and the introduction of what has become known as 'e-commerce'. This paper identifies the more important early technological innovations, their influence on textile manufacture, distribution and consumption, and the changed role of the designer and craftsperson over the course of these technological ripples. The implications of non-ethical production, globalisation and so-called 'fast fashion' and non-sustainability of manufacture are examined, and the potential benefits and opportunities offered by new and developing forms of social media are considered. The message is that hand-crafted products are ethical, sustainable and durable.

Development and performance evaluation of a low-cost custom-made extensional rheometer (저비용 수제 연신레오미터 개발 및 성능 평가)

  • Sihyun Kim;Hanbyeol Pak;Jeong-Hyun Kim
    • Journal of the Korean Society of Visualization
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    • v.21 no.1
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    • pp.110-118
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    • 2023
  • Characterizing the extensional rheological properties of non-Newtonian fluids is crucial in many industrial processes, such as inkjet printing, injection molding, and fiber engineering. However, educational institutions and research laboratories with budget constraints have limited access to an expensive commercial extensional rheometer. In this study, we developed a custom-made extensional rheometer using a CO2 laser cutting machine and 3D printer. Furthermore, we utilized a smartphone with a low-cost microscopic lens for achieving a high spatial resolution of images. The aqueous polyethylene-oxide (PEO) solutions and a Boger fluid were prepared to characterize their extensional properties. A transition from a visco-capillary to an elasto-capillary regime was observed clearly through the developed rheometer. The extensional relaxation time and viscosity of the aqueous PEO solutions with a zero-shear viscosity of over 300 mPa·s could be quantified in the elasto-capillary regime. The extensional properties of the solutions with relatively small zero shear viscosity could be calculated using a smartphone's slow-motion feature with increasing temporal resolution of the images.

A Study on the Fabrication of bone Model X-ray Phantom Using CT Data and 3D Printing Technology (CT 데이터와 3D 프린팅 기술을 이용한 뼈 모형 X선 팬텀 제작에 관한 연구)

  • Yun, Myeong Seong;Han, Dong-Kyoon;Kim, Yeon-Min;Yoon, Joon
    • Journal of the Korean Society of Radiology
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    • v.12 no.7
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    • pp.879-886
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    • 2018
  • A 3-dimensional (D) printer is a device capable of outputting a three-dimensional solid object based on data modeled in a computer. These features are utilized in the bone model X - ray phantom production etc using CT data by fusing with the radiation science field. A bone model phantom was made using data obtained by CT scan of an existing Pelvis phantom, using PLA, Wood, XT-CF20, Glow fill, Steel filaments which are materials of Fused Filament Fabrication (FFF) 3D printer.Measure Hounsfield Unit (HU) with images obtained by CT scan of the existing Pelvis phantom and five material phantoms made with 3D printer under the same conditions,SI and SNR were measured using a diagnostic X-ray generator, and each phantom was compared and analyzed.As a result, the X - ray phantom in the X - ray examination condition of the limb was found to be most suitable for the glow fill filament.The characteristics of the filament can be known to the base of this research and the practicality of X - ray phantom fabrication was confirmed.

Research on functional module jewelry through combination method (결합 방식을 통한 기능성 모듈 주얼리 연구)

  • Jung-Jin Chun
    • The Journal of the Convergence on Culture Technology
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    • v.9 no.1
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    • pp.111-118
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    • 2023
  • The purpose of this study is to study jewelry designs presented to general consumers who seek new products and diversity. We would like to present a modular jewelry design with a structure and combination method that is distinct from jewelry in a multimodal replacement method that allows various product modules sold in the past to be worn interchangeably. Problems are likely to occur when a number of existing rather small parts are manufactured in a complex combination method, and difficulties may follow when consumers replace decorative parts and lose them in the process of assembling small fixture parts. Therefore, in order to reduce these problems, we try to make it different from jewelry products made with a simple and simple design so that it can be easily replaced and worn without the need for other coupling parts, and produced using the latest 3D printer (Rapid Prototyping). In this study, based on the experience and know-how gained while engaging in field work, it was possible to make a real object and focused on minimizing problems during the production process, and through this, time and economic loss can be reduced. The purpose of the study is to produce improved jewelry products by expressing more sophisticated and differentiated shapes by using 3D programs (CAD).

Development of the Upper Wear Fixation Device for Chest AP X-ray Imaging on the Emergency Stretcher Bed (응급실 침대 위 흉부전후방향 엑스선 검사를 위한 상의고정장치 개발)

  • Lim, Woo-Taek;Hong, Dong-Hee
    • Journal of radiological science and technology
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    • v.45 no.3
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    • pp.205-211
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    • 2022
  • This study aimed to provide basic data for 3D printing in the medical health field by developing upper wear fixation device (UWFD), an auxiliary device for shortening chest AP examination time on emergency room beds and non-contact with patients. The standard of hooks was modeled according to the bed frame using the Autodesk Fusion 360. It was printed with Form2 (Formlabs, Somerville, MA, USA), as SLA (stereo lithography apparatus) method, and was washed and hardened using Form Wash and Form Cure. The completed UWFD conducted an online survey on 4 items of stability, convenience, availability, preference and general characteristics. The total stability average was 3.93±0.80, the total convenience average was 3.93±0.68, the total availability average was 4.01±0.89, and the total preference average was 3.80±1.08. This study was significant in suggesting improvements in the general X-ray examination process in the emergency room by designing and making aids to easily fixing the patient's top to the frame of the emergency bed while meeting promptness and non-contact with the patient.

A Study on Manufacturing Innovation in the Jewelry Industry through Automated Systems (자동화 시스템을 통한 쥬얼리 산업의 제조 혁신에 관한 연구)

  • Chun, Jung Jin
    • The Journal of the Convergence on Culture Technology
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    • v.6 no.4
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    • pp.123-130
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    • 2020
  • Prior to the introduction of automated systems such as jewelry CAD and CAM, the jewelry manufacturing industry had many originals made by hand. However, after the introduction of the automated system, original craftsmen with high technology have disappeared, and computer designers and 3D printing print engineers are taking their place. The introduction of automated systems such as CAD and CAM in the existing hand-made production line has resulted in diversification of designs and cutting-edge and specialization of jewelry manufacturing. In the domestic jewelry industry, the dependence of automation systems such as CAD and CAM in the manufacturing process continues to increase, and the situation is taking up more and more parts in the jewelry design curriculum of universities. From these results, the CAD/CAM automation system field in the jewelry manufacturing industry becomes an essential and important field in the future.

Butterfly Motif Design in Contemporary Fashion Collection - Focusing on VOGUE from 2019 to 2023 - (현대 패션컬렉션에 표현된 나비모티브 디자인 분석 -2019년~2023년 VOGUE를 중심으로-)

  • Shin, Jaeyoung;Huh, Jungsun
    • The Journal of the Convergence on Culture Technology
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    • v.10 no.1
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    • pp.379-386
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    • 2024
  • The purpose of this study was to pay attention to the increase in the frequency of expression of butterflies and insects, whose decrease in the number of individuals is symbolized as a measure of environmental pollution, among the various motifs of nature as we go through the COVID-19, when we realized the importance of nature. The scope of this study was limited to fashion collection fashion show photos and interview articles of online for fashion collections from 2019 to 2023. As a result of the study, 185 butterfly motivation fashion design appeared, and digital printing techniques were the most used as a type of plane expression method. Along with this, techniques such as quilting, embroidery, and beading have appeared a lot as techniques to express the planar motif of butterflies. As for the three-dimensional expression types, 3D printing, laser cutting, corsage techniques, and draping techniques showed similar proportion. It can be seen that the expressed butterfly motif had more realistic description the shape of the butterfly as it was than abstract expressions. In conclusion, it can be seen that the butterfly motif fashion design over the past five years contains a stronger message about the environment than the butterfly motif fashion in the past. It was confirmed that it is a motif with a great symbolic meaning that can convey an eco-friendly message beyond just the morphological beauty and colorful design elements of the butterfly.

Analysis of Makerspace Users' Experiences and Suggestions for Science Education (무한상상실 이용자의 경험분석과 과학교육을 위한 제언)

  • Byun, Moon-Kyoung;Cho, Moon-Heum
    • Journal of The Korean Association For Science Education
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    • v.36 no.2
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    • pp.337-346
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    • 2016
  • Makerspace was constructed to assist the public in creating new business, industry and market opportunities by combining their creative ideas with technology. So far, in Korea, a total of 58 makerspaces have been constructed and are running currently. Makerspaces are equipped with a variety of high-tech devices such as 3D printing technology and a laser cutter as means for transforming ideas into their prototypes. In this study, we examined users' experiences in makerspaces using online questionnaires and face-to-face interviews. We then presented motivations for using makerspace, interest in using it, concerns about using technologies, and other issues related to using makerspaces. Based on the results, we proposed three suggestions to improve users' experiences in makerspaces. These suggestions include: (1) supporting teaching and learning practices in makerspaces, (2) providing professional development opportunities for instructors in makerspaces, and (3) promoting innovative services that accommodate diverse users' needs.

Tape-Type Liquid Leakage Film Sensor (액체누설 감지용 테이프형 필름센서)

  • Yu, D.K.;Kim, K.S.;Yub, H.K.;Han, G.H.;Jin, D.J.;Kim, J.H.;Han, S.H.;Cho, G.S.
    • Journal of the Korean Vacuum Society
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    • v.20 no.2
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    • pp.146-154
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    • 2011
  • The adhesive-tape of a liquid leak film sensor including the alarm system is developed. The sensing film is composed of three layers such as base film layer, conductive line layer, and protection film layer. The thickness of film is 300~500 um, the width is 3.55 cm, and the unit length is 200 m. On the conductive line layer, three conducting lines and one resistive line are formulated by the electronic printing method with a conducting ink of silver-nano size. When a liquid leaks for the electricity to be conducted between the conductive line and the resistive line, the position of leakage is monitored by measuring the voltage varied according to the change of resistance between two lines. The error range of sensing position of 200 m film sensor is ${\pm}1m$.