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研究生:許惠洲
研究生(外文):Hui-chou Hsu
論文名稱:微光學元件成型與模具表面輻射快速加熱之研究
論文名稱(外文):Experimental Investigation on Rapid Heating of Radiation for Micro Optical Device Manufacture
指導教授:黃光榮黃光榮引用關係
指導教授(外文):Kuang-Lung Huang
學位類別:碩士
校院名稱:明道大學
系所名稱:光電暨能源工程學系碩士班
學門:工程學門
學類:綜合工程學類
論文種類:學術論文
論文出版年:2011
畢業學年度:99
語文別:中文
論文頁數:70
中文關鍵詞:微射出成型、輻射、變模温系統、飛秒雷射
外文關鍵詞:micro-injection moldingradiationRapid heat cycle molding systemfemtosecond laser
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射出成型是目前製造業重要的生產方式,可以快速且大量生產,符合低成本高效率的原則,隨著科技的發展,所需的產品也朝向輕薄短小,特徵也朝向微米或奈米尺寸挑戰,因此微光學元件之成型技術發展也更加地重要,本研究使用紅外線聚焦在模具使模仁表面快速加熱至設定温度後成型,主要探討快速加熱系統設定之條件與成型之微光學元件表面特徵變化之相對影響關係,藉由模具表面温度的控制改善充填效果,得到足夠的轉寫精度及縮短生產週期。
在加工的過程中,本實驗採用飛秒雷射系統加工出圓形的孔洞陣列,此雷射加工系統具有突破光學繞射加工極限之潛力,未來將有機會完成更為小尺寸的加工。而微射出成型製程完成的成品則可觀察到,藉由材料的流動性控制,將有機會實現材料成形曲率控制,達成微小尺寸的光學元件陣列。
Injection molding is an important manufacturing process for mass production of inexpensive plastic parts. As the development of new technologies allows products to be made smaller with features at micro-/nano-scales, the demand of ultra-precise optical parts also increases. This project investigates the use of focused infrared beam in heating injection mold housing for thermoplastic molding, and studies the effect of heating parameters on the properties of the surface of the molded parts. The quality of replication and the molding cycle time can be improved and shortened by using optimized heating parameters.
In this research, we use femtosecond laser to manufacture circular hole array, and this system has potential to do the hole size less than 1/4 wavelength. During micro injection procedures, we find it is possible to control the curvature of the optical lens array by the manufacture parameters.
誌謝…………………………………………………………………… i
摘要 …………………………………………………………………… ii
Abstract ……………………………………………………………… iii
目錄 …………………………………………………………………… iv
圖目錄 ………………………………………………………………… vii
表目錄 ………………………………………………………………… ix
第一章. 緒論 ……………………………………………………… 1
1.1研究動機與目的 ……………………………………………… 1
1.2文獻探討 .…………………………………………………… 2
1.2.1雷射加工 ………………………………………………… 2
1.2.2微成形技術 ……………………………………………… 7
1.3 論文架構……………………………………………………… 8
第二章. 原理與實驗方法 ……………………………………… 9
2.1微成型…………………………………………………………… 10
2.2雷射原理 ……………………………………………………… 11
2.2.1電漿效應 ………………………………………………… 13
2.2.2雷射加工小孔效應 ……………………………………… 14
2.2.3飛秒雷射 ………………………………………………… 16
2.3熱輻射 ………………………………………………………… 18
2.4實驗方法 ……………………………………………………… 21
2.4.1玻璃轉移温度(Tg)……………………………………… 21
2.4.2射出成形 ………………………………………………… 21
第三章. 實驗設計與規劃 ………………………………………… 24
3.1實驗設備 ………………………………………………………… 24
3.1.1飛秒雷射系統 …………………………………………… 24
3.1.2成形設備 ………………………………………………… 25
3.2實驗設計……………………………………………………… 31
3.2.1模仁製作……………………………………………… 31
3.2.2成型步驟 ………………………………………………… 34
3.3射出成型製程條件優化………………………………………… 36
3.3.1 田口實驗設計法 ………………………………………… 37
3.3.2 應用田口實驗設計法進行條件優化 …………………… 37
第四章. 研究結果與討論 ………………………………………… 45
4.1模仁加工結果 ………………………………………………… 45
4.2 成型結果 ……………………………………………………… 45
4.2.1 第一組條件成型結果 …………………………………… 45
4.2.2 第五組條件成型結果 …………………………………… 47
4.2.3 第九組條件成型結果 …………………………………… 47
4.2.4 成型製程條件優化前後之比較 ………………………… 48
4.3 成型不良分析 ………………………………………………… 51
4.4小結……………………………………………………………… 52
第五章. 結論與展望 ……………………………………………… 54
5.1結論 ……………………………………………………………… 54
5.2未來展望 ……………………………………………………… 55
參考文獻 ……………………………………………………………… 56
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