• Title/Summary/Keyword: 이응숙

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Mirror grinding with Electrolytic In-process Dressing Method (전해인프로세스드레싱에 의한 경면연삭기술개발)

  • 이응숙;제태진;강재훈
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 1995.10a
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    • pp.57-60
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    • 1995

  • Recently, ELID (electrolytic in-process dressing) grinding technique is developed. It is possible to make a efficient precision machining of hard materials such as ceramic hard metals, and quenched steels. This paper deals with some typical applications of ELID-grinding for cylindrcal machining. The significant advantages, performance and characteristics on mirror surface grinding for external surface are described.

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Injection Molding Experiments for Small Diameter Column (미소 원주의 사출 성형 실험)

  • 제태진;이응숙;김재구
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 1995.10a
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    • pp.85-88
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    • 1995

  • Recently, the micro mold maching techining technology is developed by means of the mechanical and high energy beam process. It is possible to make the micro structure mold with high aspect ratio by the LIGA technology. This mode is used for mass production of plastic parts by the micro injection molding method. In this study, we intend to research on the basic technology of micro injection molding. As the result, we developed the injection molding technology for small column plastic parts which diameter is 500 .mu. m and 200 .mu. m respectively with wbout aspect ratio 20.

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Estimation and experimental verification of grinding wheel wear in surface grinding process (평면 연삭에서의 연삭 숫돌 마모 추정 및 실험적 검증)

  • 김현수;주광훈;홍성욱;이응숙;박천홍
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2000.11a
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    • pp.285-288
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    • 2000

  • This paper deals with the theoretical estimation and its experimental verification of grinding wheel wear in surface grinding process. A theoretical formulation is provided to predict the grinding wheel wear in surface grinding. The associated surface roughness and grinding force are also investigated both theoretically and experimentally. Through a series of simulations and experiments, it is shown that the predictions are in good agreement with the experimental results.

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Magnetorheological Finishing (자성유체를 이용한 연마)

  • 신영재;이응숙;황경현;김경웅
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2000.11a
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    • pp.775-778
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    • 2000

  • Magnetorheological Finishing(MRF) is a newly developed and recently commercialized for finishing optical components. The magnetorheological fluid consists of a water based suspension of carbonyl iron, nonmagnetic polishing abrasives, and small amounts of stabilizer. Theoretical analysis of MRF, based on Bingham lubrication theory, is illustrated and a correlation between surface shear stress on the workpiece and material removal is obtained.

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