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최운집(U. J. Choi),정원재(W. J. Jeong),성승학(S. H. Seong),이득우(D. W. Lee) 한국정밀공학회 2004 한국정밀공학회 학술발표대회 논문집 Vol.2004 No.10월
This paper is on the development of a system for removing membranes which is designed exclusively for aircraft components. Membrane removal solution is a most critical issue in aerospace industries since a method of manufacturing the components tends to be changed from fabrication of many parts to cutting into one body. The cutting method inevitably produces a huge amount of chips and then membranes remain in the body. The membrane removal process, as a result, becomes an important issue since it is directly related to productivity. We tried to develop a new machine which will replace the conventional method that uses a handy tool. The machine has been designed for a cutting tool set to follow the unique shape of the slot in the body by a cam follower and cut the membrane automatically. The design has been checked by structural analysis: stress and vibration analysis. A prototype test has been finished. This paper summarizes a series of development process of the deburring machine and some design issues are discussed.
한관희(Kwan-Hee Han),박찬우(C. W. Park),최운집(U. J. Choi),이헌우(H. W. Lee) 대한기계학회 2005 대한기계학회 춘추학술대회 Vol.2005 No.5
To increase the productivity and efficiency of an enterprise, all relevant product information should be provided to shop floor workers timely and in a unified form because shop floor workers are final consumers of most accumulated information generated from various departments of an enterprise. But, most existing enterprise information systems have an emphasis upon providing design/manufacturing information to office workers. Proposed in this study is a development of integrated engineering information system focused on providing coherent information required for shop floor activities. Based on the extracted functional requirements, object-oriented system design and implementation is conducted. By using this system, shop floor workers can refer to all relevant information necessary to their work easily and in a integrated form.
5-Head Router Machine 의 이면 구속 공구 시스템
성승학(S. H. Seong),이득우(D. W. Lee),이채문(C. M. Lee),백효정(H. J. Baek),옥주선(J. S. Oak),최운집(U. J. Choi) 한국정밀공학회 2004 한국정밀공학회 학술발표대회 논문집 Vol.2004 No.10월
This paper presents a general description of single and dual contact tooling systems, finite element analysis, and discussions on the application of the system to the 5-head router machine which is in particular for aerospace components. This study has been performed as part of the development of the new generation 5-head router machine which is designed for high productivity. Such high productivity in essence requires high speed rotation and multiple spindles in one machine. The high speed rotation may exceed a range in a conventional single contact tooling system. The conventional tooling system is reevaluated in comparison with the dual-contact system. Finite element analysis using simplified spindle models compares major differences in the two systems. Some problems in the application to the 5-head router machine are discussed.
한관희(K. H. Han),박찬우(C. W. Park),서대헌(D. H. Seo),이상한(S. H. Lee),옥주선(J. S. Oak),최운집(U. J. Choi) 대한기계학회 2003 대한기계학회 춘추학술대회 Vol.2003 No.11
The primary goal of requirement analysis phase is to identify and document what is really needed, in a form that clearly communicates to the user and to development team members. Presented in this paper is a QFD(Quality Function Deployment)-based requirement analysis methods and procedures for developing integrated design/manufacturing information system. For the purpose of elicitation of software functional requirements, this paper adopts the method of HOQ (House Of Quality) and proposes requirements analysis procedures based on a simplified HOQ. As a result of this study, this paper suggests desired functionalities for integrated design/manufacturing information system.