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최헌종(Hon-Zong Choi),강은구(Eun-Goo Kang),이석우(Seok-Woo Lee),홍원표(Won-Pyo Hong) 한국생산제조학회 2004 한국생산제조시스템학회 학술발표대회 논문집 Vol.2004 No.4
The application of focused ion beam (FIB) technology in micro/nano machining has become increasingly popular. Its use in micro/nano machining has advantages over contemporary photolithography or other micro/nano machining technologies, such as small feature resolution, the ability to process without masks and being accommodating for a variety of materials and geometries. This paper presents that the recent development and our research goals in FIB nano machining technology are given. The emphasis will be on direct milling, or chemical vapor deposition techniques (CVD), and this can distinguish the FIB technology from the contemporary photolithography process and provide a vital alternative to it. After an introduction to the technology and its FIB principles, the recent developments in using milling or deposition techniques for making various high-quality devices and high-precision components at the micro/nano meter scale are examined and discussed. Finally, conclusions are presented to summarize the recent work and to suggest the areas for improving the FIB milling technology and for studying our future research.
최헌종(Hon-Zong Choi),허남환(Nam-Hwan Heo),강은구(Eun-Goo Kang),이석우(Seok-Woo Lee),홍원표(Won-Pyo Hong) 한국생산제조학회 2004 한국생산제조시스템학회 학술발표대회 논문집 Vol.2004 No.10
Recently, the evolution in production techniques (e.g. high-speed milling) and the complex shapes involved in modern production design has been increasingly popular. The key to the achievement is a drastic improvement of the dynamic behavior of the machine tool axes used in production machinery. The more complex these tool paths the higher the speed and acceleration requirements. But it is very difficult to reach the target for high speed machine tool because of the limitations of servo system and motion control system. However the direct drive design of machine tool axes, which is based on linear motors and which recently appeared on the market, is a viable candidate to meet the ever increasing demands, because of these advantages such as no backlash, less friction, more mechanical simplicity and very higher acceleration and velocity comparing to the traditional system. This paper focused on the performance tests of the high speed horizontal machine tool based on linear motor. Especially, dynamic characteristics were investigated through circular test and circular form machining test is carried out considering many important parameter. Therefore these several experiments is used to be evaluated the model for prediction of circular motion error and circular machined error.
최헌종(Hon-Zong Choi),박정호(Jung-Ho Park),남중종(Jung-Jong Nam),남성호(Sung-Ho Nam),황정호(Jung-Ho Hwang) 대한기계학회 2004 대한기계학회 춘추학술대회 Vol.2004 No.11
This paper presents collaboration model for information system of engineering collaboration Hub system for mold industry, the e-Manufacturing Hub System. It is shown how the collaboration ,between companies in the field of the mold industry, can progressed by collaboration templates of engineering collaboration Hub system. The e-Manufacturing Hub System, is planned and driven by Korean Government and KITECH, has a goal to establish online engineering collaborative value chain in a consortium of small and medium mold related companies. We have researched the collaboration model of this consortium for the use of the e-Manufacturing Hub System. In this paper, some templates for managing internal engineering data and job structure in the viewpoint of individual company and some templates for sharing engineering data and co-work between each other companies.