• Title/Summary/Keyword: 마이크로앤드밀링

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Micro End-milling Technology for Micro Pole Structures (미세 폴 구조물 가공을 위한 마이크로 앤드밀링 기술)

  • Je, Tae-Jin;Choi, Doo-Sun;Lee, Eung-Sug;Hong, Sung-Min;Lee, Jong-Chan;Choi, Han
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.4 no.4
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    • pp.7-13
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    • 2005
  • In the case of fabricating micro pole structures such as column, square-pole and gear shaft by the micro end-milling process, it can be useful in the fields of industry, for example, micro parts, electrode for electrical discharge machining and micro mold for injection molding. In this study, machining factors and the process were analyzed. Machining experiments of various micro pole configurations were performed. Analysis of the change and effect of the cutting force according to the machining conditions was carried out. An analytical study of the deformation of the micro pole caused cutting conditions and cutting force through the finite element method and ANSYS program was carried out. As a result, this research presented a method of fabricating the column pole of below $100{\mu}m$ diameter with high aspect ratio by using micro end-milling process, and based on that, a method of fabricating a variety of applicable structures. Also the minimum size of the pole capable of fabricating through theory and experiment were demonstrated.

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Manufacturing Technology for Micro Gear Mold Parts Using Micro Endmilling Process (마이크로 앤드밀링 공정에 의한 미소기어부품 금형 가공 기술연구)

  • Noh, J.S.;Kim, B.D.;Kim, J.G.;Yoon, J.S.;Je, T.J.
    • Proceedings of the Korean Society for Technology of Plasticity Conference
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    • 2009.10a
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    • pp.41-44
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    • 2009
  • A multi-stage gear mold including gears of 2mm and 1.5mm diameter was designed and machined in this research for developing micro gear mold manufacturing technology with micro endmill. Mechanical shapes having differential micro teeth were analyzed to be formed as designed and processing conditions were optimized by analyzing machined surface chip and cutting force. Based on the results, a prototype of micro multi-stage gear mold was manufactured.

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Experimental Investigations on Micro End-milling Cutting Characteristics Comparison and Tool Wear Behavior of AlN-hBN Composites Sintered by Hot-pressing (열간가압소결에 의해 제조된 AlN-hBN 복합재료의 마이크로 엔드밀링 절삭특성 비교와 공구마모에 관한 실험적 연구)

  • Beck, Si-Young;Shin, Bong-Cheol;Cho, Myeong-Woo;Cho, Won-Seung
    • Transactions of the Korean Society of Machine Tool Engineers
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    • v.17 no.4
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    • pp.104-111
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    • 2008
  • The objective of this study is to evaluate micro end-milling characteristics and tool wear behavior of AlN-hBN composites. First, AlN based composites with hBN contents in the range of 10 to 20vol% were prepared by hot-pressing. Vickers hardness and flexural strength of the prepared composite specimens were measured and compared according to the vol% of hBN variations. Then, cutting force variations were measured and analyzed using a tool dynamometer during the micro end-milling experiments; and machined surface shapes and roughness were investigated using a 3D non-contact type surface profiler. After micro end-milling, worn tools were investigated using a tool microscope and SEM images. From the experimental results, it can be observed that the cutting forces decreased, and surface qualities were improved with increasing hBN contents. At low content of hBN, tool chipping was observed; and tool wear rate decreased with increasing hBN contents. The results of this study insist that proper machining conditions, including tool wear behavior investigation, should be determined for the micro end-milling of AlN-hBN composites for its further application.

A Study on the Micro Parts Manufacturing Technology by Micro End-milling (마이크로 앤드밀링에 의한 미소 부품 가공기술 연구)

  • Je, T.J.;Lee, J.C.;Choi, H.;Lee, E.S.
    • Proceedings of the Korean Society of Machine Tool Engineers Conference
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    • 2003.04a
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    • pp.167-172
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    • 2003
  • The machining method by using end-milling tool has been applying in machining structures of various shapes because of the availability. Recently, all kinds of industries based on the parts of micro shape are developing, and the demands of mechanical micro machining technology are Increasing suddenly to produce these parts. According to such changes, the technology of the micro end-milling machining is applying as one of the most important machining means. This research is to aim at developing machining technology for various micro structures using micro end-mill. This paper introduces micro mechanical machining system with ultra precision, and demonstrates methods manufacturing all sorts of parts and moldings for industry and examples of applicable machining by using micro end-milling tool of micro sizes from hundreds to tens in diameter.

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