陶瓷材料具有優良的耐高溫與耐磨耗特性，可大幅取代合金材料應用於嚴苛環境中。葉輪所處的壓縮段溫度動輒上千度，必須依賴陶瓷提升其耐用度與壽命。過往製作複雜幾何的陶瓷元件，多半使用近淨型成型或快速成型方式，其需要昂貴的專用機才能生產。本文中先分析氧化鋁陶瓷材料作為葉輪材料的可能性，並規劃一系列生胚加工實驗以驗證加工生胚陶瓷葉輪的想法。首先以面銑測試實驗用氧化鋁生胚的切削性，接著以銑削尋找出可成功加工出生胚平板與仿葉片平板的參數組。實驗中並觀察各種幾何特徵加工後的情況，且提出初步改善策略。最後將可用加工參數應用至生胚葉輪的加工過程中，驗證此方法製造出陶瓷葉輪的可行性。

Ceramics can highly withstand the environments of high temperature and serious erosion, it completely substitutes for alloys which reach their specific limitations. Turbine rotor operates in the compressed stage with temperature over thousand Celsius degrees; it must rely on excellent properties of ceramics to elevate the durability and lifetime. To manufacture complex ceramic component before, industry usually uses near net shaping or rapid prototyping (RP) processes.
A manufacturing process based on machining green ceramic turbine component is presented here. Initially, formulating a series of machining experiments for green ceramics to verify the idea of thesis, and analyzing the probability of Al2O3 ceramic as a turbine material. Firstly, it needs to check the machinability of green ceramic by face milling. Secondly, point milling the normal plate of green compact and the plate with analogical blade geometry to find a set of usable machining parameters (such as
revolution speed, feed rate, step over and cutting depth); meanwhile, addressing machining amendment by observing the final conditions of specific geometric characteristics on workpiece. Finally, try to machining green ceramic turbine successfully applying the above parameters.

目錄 ··········································································································· Ι
圖次 ·········································································································· ΙΙΙ
表次 ·········································································································· VI
摘要 ·········································································································· VII
Abstract ···································································································· VIII
第一章 緒論
1.1 前言與研究背景 ··············································································· 1
1.2 文獻回顧 ··························································································· 5
1.3 研究動機與目的 ············································································· 8
1.4 論文架構 ························································································· 8
第二章 陶瓷材料生胚加工
2.1 材料特性與使用環境 ··································································· 10
2.2 性質比較與選取結果 ··································································· 11
2.3 陶瓷成型方式 ················································································· 16
2.4 生胚加工 ······················································································· 19
2.5 生胚燒結後的收縮影響 ······························································· 23
第三章 實驗流程規劃與葉輪路徑建構
3.1 實驗流程規劃 ··············································································· 25
3.2 平板加工方式與加工路徑 ····························································· 31
3.3 粗糙度與收縮率量測 ··································································· 33
3.4 陶瓷葉輪幾何建立 ······································································· 34
3.5 葉輪加工路徑建構 ······································································· 37
3.6 實驗材料與儀器設備 ···································································· 41
第四章 實驗結果與討論
4.1 面銑生胚與其切削性 ··································································· 48
4.2 生胚幾何加工觀察 ······································································· 51
4.3 仿葉片平板加工觀察 ··································································· 54
4.4 生胚收縮率量測結果 ··································································· 63
4.5 葉輪加工評估 ··············································································· 66
第五章 結論與未來研究建議
5.1 結論 ······························································································· 68
5.2 未來研究建議 ················································································· 69
參考文獻 ···································································································· 70
附錄一 B-spline 表示式 ············································································ 73

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