臺灣博碩士論文加值系統

碳纖維複合材料是由強化材與基材所組成，強化材是指碳纖維，一根碳纖維由數千條直徑大約在5至8微米或更微小的纖維所構成，再透過編織組成纖維布，通常擁有高強度與高剛性，負責承受整體材料的負載;另一個基材是指樹脂，一般分類為熱固性與熱塑性，通常都負責傳遞負載及固定補強材料，因為複合材料都是由兩種或兩種以上物理或化學的材料組合而成，兩種材料機械性質互相截長補短產生協同效應，使其擁有多種的特性，所以跟純金屬材質特性有所差異。
田口方法是透過少數實驗次數以得到最佳化的結果，本論文是使用L9(3^3 )田口直交表配置端銑刀的右螺旋切削角角度、左螺旋刀刃口重疊量、右螺旋刀刃口鈍化圓角，實驗目標是減少刀具磨耗以增加刀具壽命，還有縮短碳纖維毛邊長度以改善被切削材的表面狀態，最後再使用灰關聯分析，實驗結果顯示影響品質特性最大的因子為右螺旋切削角角度，其貢獻度佔66.23%。

The carbon fiber composite material consists of the reinforced material and substrate. The reinforced material refers to the carbon fiber which is composed of thousands of even smaller fibers with approximately 5 to 8 microns in diameter, and then through the braided way to compose the fiber cloth with high strength and high rigidity. It is responsible for bearing loads of the entire material. The substrate is generally classified into the thermosetting and thermoplastic resins. It is usually responsible for transferring loads and fixing reinforced materials. Because composite materials are composed of two or more physical or chemical materials, the synergy of these two different mechanical properties make the carbon fiber composite material has a variety of characteristics that is different from the pure metal material.
The Taguchi method is a technique that allows for optimizing results with a few number of experiments. In this thesis, we used the L9 (33) Taguchi orthogonal array to determine the appropriate rake angle with right-hand helix, the overlap of the cutting edge with left-hand helix, and the passivation radius of the cutting edge with right-hand helix for an end mill. The objectives of the experiments were to reduce tool wear to increase the tool life, and minimize the burr length of carbon fiber to improve the surface state of the workpiece. By the gray relational analysis, we found that the rake angle with right-hand helix had the most significant influence on the quality characteristics, and its contribution was 66.23 %.

摘要... i
Abstract... ii
誌謝... iii
目錄... iv
表目錄... vi
圖目錄... vii
符號說明... ix
第一章 緒論... 1
1.1研究背景... 1
1.2研究動機與目的... 1
1.3文獻回顧... 1
1.4研究流程... 3
1.5論文架構... 4
第二章 基礎理論... 5
2.1材料與刀具材質特性... 5
2.1.1複合材料材質特性... 5
2.1.2刀具材料性質特性... 6
2.2 端銑刀具... 7
2.2.1端銑刀刃數... 8
2.2.2端銑刀刃口及旋向... 8
2.2.3端銑刀具幾何角度... 9
2.2.4刀刃口鈍化處理... 15
2.3切削理論... 17
2.3.1切削模型... 17
2.3.2切削型式... 20
2.3.3纖維切屑特性... 21
2.3.4切削加工參數... 22
2.3.5刀具磨耗... 24
2.4田口方法... 25
2.4.1品質損失函數... 25
2.4.2訊號雜訊比... 26
2.4.3田口直交表... 27
2.4.4變異數分析... 28
2.4.5加法模式與信賴區間... 29
2.5灰關聯分析... 30
2.5.1灰關聯生成... 30
2.5.2灰關聯係數... 30
2.5.3灰關聯度... 30
第三章 實驗軟體與設備... 32
3.1 Tool studio研磨軟體... 32
3.2 TD-5砂輪修整機... 33
3.3 WALTER HELITRONIC BASIC刀具研磨機... 33
3.4 KEEJAAN KJ-202刀具量測儀... 34
3.5 Zoller genius3s刀具量測儀... 35
3.6 EDSING POLL TECH PT-G4鈍化機... 36
3.7 Zoller pomSkpGo刀尖鈍化量測儀... 37
3.8 FANUC ALPHA-T21iFB工具機... 37
3.9 Olympus STM 6高精度工具顯微鏡... 38
3.10 KEYENCE VK-X100形狀分析雷射顯微鏡... 39
第四章 實驗設計與規劃... 41
4.1前測試切削實驗... 41
4.1.1加工測試參數... 41
4.1.2右螺旋切削角測試... 41
4.1.3左螺旋刀刃口型態測試... 42
4.2實驗量測方法... 42
4.2.1刀腹磨耗量測... 43
4.2.2碳纖維毛邊長度量測... 43
4.3前測試實驗結果... 44
4.3.1切削角測試結果... 44
4.3.2左螺旋刀刃口重疊量測試結果... 45
4.4主要實驗設計... 46
第五章 實驗結果與驗證... 48
5.1右螺旋刀腹磨耗量測結果... 48
5.2左螺旋刀腹磨耗量測結果... 48
5.3碳纖維毛邊長度量測結果... 49
5.4目標S/N比計算... 50
5.5因子反應表... 50
5.6灰關聯分析... 51
5.7變異數分析... 52
5.8分析結果... 54
5.9實驗驗證... 55
第六章 結論與未來展望... 56
6.1結論... 56
6.2未來展望... 56
參考文獻... 57
Extended Abstract... 59
Abstract... 59
1.Introduction... 60
2.Chip form and cutting test... 60
3.Taguchi method and prime experiment... 63
4. Discussion and conclusion...64
References...65

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