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친환경 소재로 형성된 듀얼 펌프캡 용기의 낙하충격 시뮬레이션 분석
위은찬,고민성,김현정,이중배,김민수,이주형,공정식,백승엽,Wi, Eun-Chan,Ko, Min-Sung,Kim, Hyun-Jeong,Lee, Joong-Bae,Kim, Min-Su,Lee, Joo-Hyung,Kong, Jung-Shik,Baek, Seung-Yub 한국금형공학회 2021 한국금형공학회지 Vol.15 No.1
Pump cap is a product that is widely used due to its ease of use and simple operation. These pump caps are applied to heterogeneous functional cosmetics and are being developed as dual pump caps. However, the conventional dual pump cap has a problem in that it is inconvenient to use and leakage occurs. In addition, it is formed of a plurality of materials, and there is a problem that is difficult to recycle. Lately, since the problem of environmental pollution is getting serious, the dual pump cap, which is difficult to recycle, cannot be used. Currently, eco-friendliness has been considered in Korea, and there are no dual pump cap containers with excellent sealing performance. Therefore, in this study, a dual pump cap container made of eco-friendly material was designed. In addition, finite element analysis was performed to verify the design feasibility of the product.
유한요소해석을 이용한 백그라인딩 장비의 구조안정성 연구
위은찬,고민성,김현정,김성철,이주형,백승엽,Wi, Eun-Chan,Ko, Min-Sung,Kim, Hyun-Jeong,Kim, Sung-Chul,Lee, Joo-Hyung,Baek, Seung-Yub 한국금형공학회 2020 한국금형공학회지 Vol.14 No.4
Lately, the development of the semiconductor industry has led to the miniaturization of electronic devices. Therefore, semiconductor wafers of very thin thickness that can be used in Multi-Chip Packages are required. There is active research on the backgrinding process to reduce the thickness of the wafer. The backgrinding process polishes the backside of the wafer, reducing the thickness of the wafer to tens of ㎛. The equipment that performs the backgrinding process requires ultra-precision. Currently, there is no full auto backgrinding equipment in Korea. Therefore, in this study, ultra-precision backgrinding equipment was designed. In addition, finite element analysis was conducted to verify the equipment design validity. The deflection and structural stability of the backgrinding equipment were analyzed using finite element analysis.
FIB milling을 이용한 고정밀 다이아몬드공구 제작과 공정에 관한 연구
위은찬,정성택,김현정,송기형,최영재,이주형,백승엽 한국금형공학회 2020 한국금형공학회지 Vol.14 No.2
Recently, research for machining next-generation micro semiconductor processes and micro patterns has been actively conducted. In particular, it is applied to various industrial fields depending on the machining method in the case of FIB (Focused ion beam) milling. In this study, intends to deal with FIB milling machining technology for ultra-precision diamond tool fabrication technology. Ultra-precision diamond tools require nano-scale precision, and FIB milling is a useful method for nano-scale precision machining. However, FIB milling has a problem of Gaussian characteristics that are differently formed according to the beam current due to the input of an ion beam source, and there are process conditions to be considered, such as a side clearance angle problem of a diamond tool that is differently formed according to the tilting angle. A series of process steps for fabrication a ultra-precision diamond tool were studied and analyzed for each process. It was confirmed that the effect on the fabrication process was large depending on the spot size of the beam and the current of the beam as a result of the experimental analysis.
친환경 소재로 형성된 에코 펌프 모듈의 사출 성형 해석 연구
위은찬(Eun-Chan Wi),고민성(Min-Sung Ko),윤이섭(Yi-Seob Yun),백승엽(Seung-Yub Baek),이중배(Joong-Bae Lee),김민수(Min-Su Kim),장성민(Sung-Min Jang) 한국생산제조학회 2022 한국생산제조학회지 Vol.31 No.1
A pump cap, which is widely used in daily life, is a cap which holds contents inside a container and can discharge it through a simple pump operation. It provides a useful storage solution and is easy to use. However, existing pump caps contain heterogeneous materials, making it difficult to separate, and this causes many problems for recycling. In this study, an eco-pump module made of an eco-friendly plastic material was designed for easy recycling and injection molding analysis was performed using a CAE program. In addition, the moldability according to the injection conditions was analyzed to enable the selection of conditions which produce high-quality eco-pump modules.
밀링 공구의 역 공학 설계에서 3D 유한요소 해석을 통한 절삭력 실험의 신뢰성 검증
정성택,위은찬,김현정,송기혁,백승엽 한국금형공학회 2019 한국금형공학회지 Vol.13 No.2
CNC(Computer Numerical Control) machine tools are being used in various industrial fields such as aircraft and automobiles. The machining conditions used in the mold industry are used, and the simulation and the experiment are compared. The tool used in the experiment was carried out to increase the reliability of the simulation of the cutting machining. The program used in the 3D-FEM (finite element method) was the AdvantEdge and predicted by down-milling. The tool model is used 3D-FEM simulation by using the cutting force, temperature prediction. In this study, we carried out the verification of cutting force by using a 3-axis tool dynamometer (Kistler 9257B) system when machining the plastic mold Steel machining of NAK-80. The cutting force experiment data using on the charge amplifier (5070A) is amplified, and the 3-axis cutting force data are saved as a TDMS file using the Lab-View based program using on NI-PXIe-1062Q. The machining condition 7 was the most similar to the simulation and the experimental results. The material properties of the NAK-80 material and the simulation trends reflected in the reverse design of the tool were derived similarly to the experimental results.