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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 廖運炫 | |
dc.contributor.author | Mu-En Lee | en |
dc.contributor.author | 李沐恩 | zh_TW |
dc.date.accessioned | 2021-06-17T08:12:15Z | - |
dc.date.available | 2024-08-18 | |
dc.date.copyright | 2019-08-18 | |
dc.date.issued | 2019 | |
dc.date.submitted | 2019-08-15 | |
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dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/73865 | - |
dc.description.abstract | 微結構應用於工件表面可以為表面帶來附加的功能。近年來超精密加工應用於製造形狀尺寸精確且具有三維結構的光學元件,以用於成像與非成像的領域。在隱形眼鏡模仁表面加上軸對稱微溝槽陣列可為隱形眼鏡帶來更多的醫療用途。微光柵的寬度縮小時,光柵溝槽的曲率半徑也會縮小到與鑽石車刀刀鼻半徑接近的尺寸。在製作微溝槽的加工路徑時,三維結構的表面經由電腦輔助製造軟體被轉換為大量的數值資料點。在微溝槽的邊界由於工件表面的角度突然改變,造成此處的加工資料點不連續。刀具通過為溝槽邊界不連續的點資料形成干涉,也造成微溝槽寬度的精度無法進一步提升。本文提出於曲面隱形模仁上精準加工微溝槽的路徑生成方法,可以避免干涉發生。透過實驗結果發現,相較於輔助加工軟體所提供的點資料加工路徑,本文所提出的加工方式可加工出寬度更精準的微溝槽,以達後續成像要求的公差規格。 | zh_TW |
dc.description.abstract | Microstructures on surfaces of workpiece can provide additional functions. In recent years ultraprecision machining has been employed to manufacture accurate optical component with 3D structure for imaging and non-imaging applications. Axisymmetric micro grating array on contact lens mold can provide additional medical function. When the width of the micro-grating reduced, the curvature of the grating also reduced to a size close to the nose radius of the diamond tool.To transfer these micro grating features into numerical control code, the workpiece surfaces are presented as numerous data points. Due to abrupt slope changes, the cutting tool location on the edge of micro grating are discontinuous. Interference occurs when cutting tool center go through the discontinuous data points, which cause the width of the micro gratings are not precise enough. This project provides a tool path generating method which interference is not happening and precision of width of the micro grating is good by cutting experiments. | en |
dc.description.provenance | Made available in DSpace on 2021-06-17T08:12:15Z (GMT). No. of bitstreams: 1 ntu-108-R06522729-1.pdf: 8498155 bytes, checksum: a1200081f37597ca165f22107427a6cf (MD5) Previous issue date: 2019 | en |
dc.description.tableofcontents | 誌謝 I
摘要 II Abstract III 目錄 IV 圖目錄 VII 表目錄 X Chapter1 緒論 1 1.1 前言 1 1.2 研究動機 4 1.3 文獻回顧 8 1.4 研究目的 12 1.5 本文架構 12 Chapter2 相關理論與知識 13 2.1 超精密鑽石車削加工技術 13 2.1.1 超精密加工技術 13 2.1.2 鑽石切削技術 14 2.1.3 鑽石刀具性質 16 2.2 加工路徑生成方式 17 2.3 表面組織 19 2.3.1 表面形貌定義 19 2.3.2 表面粗糙度表示法 21 2.3.3 形狀精度表示法 23 Chapter3 微溝槽結構加工探討 24 3.1 輔助軟體生成加工路徑改善方法 25 3.2 刀具成型加工方法 29 3.3 微溝槽加工方法比較 34 3.3.1 改善輔助軟體產出路徑之優劣 35 3.3.2 鑽石車刀成型加工之優劣 35 3.3.3 曲面模仁上建立微溝槽陣列作為光柵之加工方式選擇 36 Chapter4 實驗設備與規劃 37 4.1 實驗設備 37 4.1.1 超精密車床 37 4.1.2 雷射共軛焦顯微鏡 38 4.1.3 形狀量測儀 40 4.1.4 掃描電子顯微鏡 41 4.1.5 單晶鑽石車刀 43 4.1.6 路徑生成軟體 43 4.1.7 工件材料 45 4.2 實驗規劃 46 Chapter5 實驗與量測結果 47 5.1 實驗設置 47 5.1.1 實驗目標 47 5.1.2 加工參數選擇 48 5.1.3 加工程式製作 51 5.2 實驗與量測結果 53 5.2.1 數位顯微鏡觀察結果 53 5.2.2 共軛焦顯微鏡觀察結果 55 5.2.3 掃描式顯微鏡觀察結果 56 Chapter6 結論與未來展望 60 6.1 結論 60 6.2 未來展望 61 參考文獻 62 | |
dc.language.iso | zh-TW | |
dc.title | 超精密鑽石車削具微結構模仁之研究 | zh_TW |
dc.title | Single Point Diamond Turning of Micro-structured Mold | en |
dc.type | Thesis | |
dc.date.schoolyear | 107-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 蔡曜陽,趙崇禮 | |
dc.subject.keyword | 鑽石車削,隱形眼鏡模仁,微結構, | zh_TW |
dc.subject.keyword | Diamond turning,Contact lens mold,Microstructures, | en |
dc.relation.page | 65 | |
dc.identifier.doi | 10.6342/NTU201903217 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2019-08-15 | |
dc.contributor.author-college | 工學院 | zh_TW |
dc.contributor.author-dept | 機械工程學研究所 | zh_TW |
顯示於系所單位: | 機械工程學系 |
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