• 제목/요약/키워드: 자기유변연마

검색결과 31건 처리시간 0.031초

자성유변연마의 컨디셔닝 기술 (Conditioning of Magnetorheological finishing)

  • 신영재;이응숙;김경웅;김영민
    • 한국정밀공학회:학술대회논문집
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    • 한국정밀공학회 2003년도 춘계학술대회 논문집
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    • pp.557-560
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    • 2003

  • 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. This magnetorheological fluid is pumped from conditioner on the rotating wheel and suctioned back to the conditioner, where it cooled to setpoint temperature and evaporative losses are replaced. This method could produce some problems in suction. So newly designed MRF tools is proposed in which MR fluid is not circulated and conditioned by the slurry. The new polishing mechanism is experimented. Measured surface roughness supports the validity of this mechanism.

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3차원 형상 연마를 위한 라운드 엔드밀 타입 MR연마시스템의 재료제거 특성에 관한 연구 (A Study on the Characteristics of Material removal using a Round endmill Type MR Polishing System for 3D Shape)

  • 홍광표;신봉철;김동우;조명우;제태진
    • 한국생산제조학회지
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    • 제20권5호
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    • pp.632-638
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    • 2011

  • Recently, it has been studying for the polishing process of micro parts widely. However, present MR polishing system, it is difficult to minimize electromagnet and to polish sphere or slope parts. Then, it can not be obtained demanded surface quality. In this study, material removal characteristics of BK7 glass using round endmill type MR polishing system were investigated through series of experiment. The experiments were investigated by changing imposed polishing conditions, such as rotational speed and polishing depth. As a results, very high material removal was obtained at 0.7mm gap distance, 1,980rpm.

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