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이낙규(Nak-Kyu Lee),이혜진(Hye-Jin Lee),최석우(Seogou Choi) 한국생산제조학회 2005 한국공작기계학회 추계학술대회논문집 Vol.2005 No.-
In this paper Research development about a micro metal forming manufacturing system has been developed. A micro forming system has been achieved in Japan and it's developed micro press is limited to single forming process. To coincide with the purpose to be more practical, research and development is necessary about the press which the multi forming process is possible. We set the development of the equipment including micro deep drawing, micro punching and micro restriking process to the goal. To achieve this goal, Research about micro forming process to be related to multi process forming must be preceded first. Material selection and analysis about micro forming process are accomplished in this paper. And the basis research to make actual system is accomplished.
이낙규(Nak-Kyu Lee),이혜진(Hye-Jin Lee),최석우(Seogou Choi),이근안(Geun-An Lee) 한국생산제조학회 2006 한국공작기계학회 춘계학술대회논문집 Vol.2006 No.-
In this paper Research development about a micro metal forming manufacturing system has been developed. A micro forming system has been achieved in Japan and it's developed micro press is limited to single forming process. To coincide with the purpose to be more practical, research and development is necessary about the press which the multi forming process is possible. We set the development of the equipment including micro deep drawing, micro punching and micro restriking process to the goal. To achieve this goal, Research about micro forming process to be related to multi process forming must be preceded first. In last research, the micro pressing module is developed and this module is combined to desktop actuating system. We can get a micro forming process technology from last result. In this paper, the micro metal forming manufacturing system is designed and made with miniaturized size system. A basic metal foil forming experiment is researched using this miniaturized forming system.
바이오필름 제어를 위한 플렉서블 스테인레스 스틸 미세 구조 제작 기술
이수민(Su-Min Lee),이도훈(Do-Hoon Lee),이낙규(Nak-Kyu Lee),이성호(Sung-Ho Lee) 한국생산제조학회 2011 한국생산제조시스템학회 학술발표대회 논문집 Vol.2011 No.4
Biofilms are the terms used to describe the attachment of biological material to the surface. Biofouling is economically significant problem in the water service utilities, many industrial processes. The prevention of bacterial infection to the surfaces has been also recognized to be very important in biomedical and health industries. In this study, we suggest a microstructure fabrication for anti-biofouling of stainless steel. It was investigated the effect of microstructure formation and the increase of surface roughness to anti-biofouling in stainless steel (type 304 SS). As a result, it was observed that the decrease of the micro-organism attachment occurs by increasing the microstructure formed stainless steel compared to the conventional stainless steel. We expect that this work can be used for carious non-toxic anti-biofouling applications.
마이크로 박판 밸브 성형을 위한 마이크로 프레스 시스템 개발
이혜진(Hye-Jin Lee),이낙규(Nak-Kyu Lee),최석우(Seogou Choi),이형욱(Hyoung-Wook Lee),이근안(Geun-An Lee) 한국생산제조학회 2007 한국공작기계학회 춘계학술대회논문집 Vol.2007 No.-
In this paper Research development about a micro metal forming manufacturing system has been developed. A micro forming system has been achieved in Japan and it's developed micro press is limited to single forming process. To coincide with the purpose to be more practical, research and development is necessary about the press which the multi forming process is possible. We set the development of the equipment including micro deep drawing, micro punching and micro restriking process to the goal. To achieve this goal, we set the application product to a micro thin foil valve which is used in the micro pump module. The compound die set has been designed and manufactured to make two step process. The material of thin foil valve is SUS-304 and its thickness is 50㎛. We can get a good forming results from micro punching experiments in this paper.
Micro Particle Counting 을 위한 Micro Fluidic Device 개발
이준(Jun Lee),최현석(Hyeun-seok Choi),윤덕원(Duk-won yun),탁태열(Tae-yul Tak),한창수(Chang-soo Han),이낙규(Nak-kyu Lee),최태훈(Tae-hoon Choi) 대한기계학회 2005 대한기계학회 춘추학술대회 Vol.2005 No.5
Recently many researches related with biotechnology are processed and it is the situation that research about micro fluidic devices is active. Micro fluidic devices has been one of the most widely used devices for the analysis in biotechnology because they have many advantages, flexibility, transparency, thermal and electrical stability, nontoxic, etc. In this study, micro fluidic device with PDMS is developed for particle counter which separates a small quantity of particles. The principle of micro particle counter is electrical-impedance method, and it was also applied hydrodynamic flow focusing. It is more efficient method to analyzing particles furthermore it can be applied to cell counting for biotechnology.