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BTA 드릴을 이용한 대형선박 연료공급관 가공에 관한 연구
한민식(Han Min-Sik),박대균(Park Dae-Kyun),박정보(Park Jeong-bo),김순경(Kim Soon-Kyung),전언찬(Jeon Eon-Chan) (사)한국CDE학회 2010 한국 CAD/CAM 학회 학술발표회 논문집 Vol.2010 No.1
When deep hole drilling with BTA drill, there are serious problems such as accuracy of diameter, surface roughness to inhibit the required qualities. With the purpose of the accuracy improvement in deep hole drilling, we investigated the influence of the drilled hole accuracy and the cutting resistance of materials that occurred as the variation of the cutting condition after deep hole drilling with BTA drill on fuel oil supply pipe for large ship.
김성욱(Sung-Wook Kim),박대원(Dae-Won Park),길경석(Gyung-Suk Kil),목재균(Jae-Kyun Mok),한주섭(Ju-Seop Han) 한국철도학회 2008 한국철도학회 학술발표대회논문집 Vol.- No.-
Light weight of vehicles by composite materials makes possible high speed, energy saving, and low repair cost. As Bimodal Tram and Tilting Train eXpress(TTX) use carbon composite material for their bodies, safety for passengers and electrical devices against unexpected failures has been issued more than ever. Lightning strike which generates high voltages and large currents is the worst case for the safety of passengers and devices. With this background, we experimentally investigated the insulation breakdown phenomena on carbon composite materials by the application of lightning surge voltage and current. From the experimental results, we could estimate whether the composite body is safe or not for the inside passengers and devices against lightning strikes.
속이 빈 모델을 이용한 쾌속 시제품의 특징 분석 및 활용에 관한 연구
김태호(Tae-Ho Kim),박대균(Dae-Kyun Park),박정보(Jeong-Bo Park),김중완(Jung-Wan Kim),전언찬(Eun-Chan Jeon) 한국기계가공학회 2008 한국기계가공학회 춘추계학술대회 논문집 Vol.2008 No.-
Process of production of rapid prototype increase to material in stratification or does solidification and fill section of each layer as is perfect as increases volume. however,time and expense bring exhausted shortcoming. Because this adds volume of unnecessary section. Wish to solve this defect using hollow model. The inside is empty the model has the wall thickness which is uniform and the inside is empty to create the model. This paper wished to grasp that do empty solid model's properties of matter inside and grasp applicable thickness to actuality product.
볼엔드밀을 이용한 경사면 가공시 절삭력 예측을 위한 유한요소해석
송호봉(Ho-Bong Song),박병훈(Byung-Hoon Park),박대균(Dae-Kyun Park),한민식(Min-Sik Han),전언찬(Eon-Chan Jeon) 한국생산제조학회 2010 한국공작기계학회 추계학술대회논문집 Vol.2010 No.-
A great variety of products rely on this technology for the production of the dies and molds used in manufacturing. Ball-end milling is necessary in manufacturing die and mold including sculptured surface. Also cutting force was changed according to the cutting method and cutting. This study explains that machining force is changed to cutting direction. we need to think that ball endmill's pick point is included while working on it. So propose of this study is to analysis tool deformation and life of machining force changed to cutting direction.
볼엔드밀을 이용한 경사면 가공시 절삭력 예측을 위한 유한요소해석
송호봉(Ho-Bong Song),박병훈(Byung-Hoon Park),박대균(Dae-Kyun Park),한민식(Min-Sik Han),전언찬(Eon-Chan Jeon) 한국생산제조학회 2010 한국생산제조시스템학회 학술발표대회 논문집 Vol.2010 No.10
A great variety of products rely on this technology for the production of the dies and molds used in manufacturing. Ball-end milling is necessary in manufacturing die and mold including sculptured surface. Also cutting force was changed according to the cutting method and cutting. This study explains that machining force is changed to cutting direction. we need to think that ball endmill's pick point is included while working on it. So propose of this study is to analysis tool deformation and life of machining force changed to cutting direction.
유상렬(Sang-yeol Yu),한민식(Min-Sik Han),박대균(Dae-Kyun Park),김수용(Soo-Yung Kim),변상민(Sang-Min, Byeon),전언찬(Eon-Chan Jeon) 한국기계가공학회 2007 한국기계가공학회 춘추계학술대회 논문집 Vol.2007 No.-
This study is for aspheric lens that is one of a core technology in the optical industry. The feature of a aspheric lens is not to have the spherical aberration. So in optical industry, aspheric lens are essential element to miniaturization, high effectiveness and light weight. In this study we applied a lay back-tracer method using the index of refraction to design aspheric lens. We developed the automatic design program for aspheric lens by user interfacing program VisualLISP in AutoCAD. And we manufactured aspheric lens and measured it.