淡江大學機構典藏:Item 987654321/100515
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    题名: Study on fabricating of micro-pyramid array by precision diamond turning
    作者: Chao, Choung-Lii;Lin, Wen-Chung;Chou, Wen-Chen;Ko, Jui-Ling;Ma, Kung-Jeng;Chao, Chung-Woei
    贡献者: 淡江大學機械與機電工程學系
    日期: 2013-04
    上传时间: 2015-03-02 23:13:35 (UTC+8)
    出版者: SPIE
    摘要: As the demand for micro-patterned parts getting bigger, the need for molds with micro/nano scaled patterns to duplicate these parts effectively and economically is increasing ever so rapidly. Over the years, numerous attempts have been made to fabricate these molds using various approaches such as lithography, FIB, laser ablation, and precision diamond turning. Amongst these approaches, diamond turning is by far the most commonly used method to generate the micropatterned rollers for roll-to-roll fabricating of precision optical parts such as BEF and 3D films. However, micro-burrs are frequently produced during the micro-cutting process which not only makes the mold un-usable but also increases the cost of machining. Efforts have been made to study the burr formation process during the micro-cutting by FEM simulation, micro-scratching and diamond turning. Influences of the machining parameters such as rake angle, cutting edge radius, included angle and cutting speed on the burr formation were systematically investigated. Array of micropyramids with 90° apex angle, 40*40μm2 basal area and minimised burr were successfully produced on a OFCu roller of 270mm in diameter. The results showed that (i) tool rake angle, included angle and cutting edge radius have profound effect on burr formation and achievable surface finish, (ii) simulation can supply very useful information for setting the machining parameters to suppress the burr formation during micro-cutting process.
    關聯: Proc. SPIE 8769
    显示于类别:[機械與機電工程學系暨研究所] 會議論文

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