臺灣博碩士論文加值系統

本論文主要是探討球銑刀在加工不鏽鋼S304時，切削參數對表面粗糙度之影響並建立粗糙度模型。在本研究中，首先使用田口L8直交表找出主導參數(包含每刃進給、主軸轉速及路徑間隔大小)，然後據以建立沿進給方向和路徑間隔方向之粗糙度模型。此外，本研究分別以半徑5 mm與3 mm之球銑刀進行實驗分析與建立模型，然後比較不同銑刀半徑之粗糙度模型。依據本研究建立之模型，我們可更精確與完整的描述曲面球銑加工之表面粗糙度，進而提升加工之精度與加工效率。

This thesis presents an analysis on the effects of machining parameters on surface roughness in ball-end milling stainless steel S304, and thereby develops an experimental model. In the study, a Taguchi L8 table is first utilized to determine the dominant cutting parameters (that are feed, spindle speed, and path interval), and thereby the roughness models in the feed and the transverse directions are developed, respectively. Moreover, two different sets of cutting experiments with different-sized cutters (of which radii are 5 mm and 3 mm, respectively) are conducted to obtain the corresponding models, and consequently, the effect of cutter size is analyzed. Based on the proposed surface-roughness model, we can accurately describe and predict the surface roughness of machined part, and thereby, improve the machining accuracy and efficiency.

致謝 I
摘要 II
Abstract III
目錄 IV
圖目錄 VII
表目錄 VIII
符號索引 IX
第一章　緒論 1
1.1 前言 1
1.2 研究動機與目的 2
1.3 文獻回顧 4
1.4 研究方法 6
1.5 本文研究架構 7
第二章　相關理論 8
2.1 刀具切削幾何理論 8
2.1.1 刀具進給方向之粗糙度 9
2.1.2 路徑間隔方向之粗糙度 12
2.2 表面粗糙度 15
2.2.1 表面粗糙度定義 15
2.2.2 影響表面粗糙度因素 19
2.3田口方法理論 20
2.4 多重線性回歸 21
2.4.1 最小平方法(method of least square) 21
2.4.2 變異數 22
第三章　實驗設備與實驗方法 25
3.1 實驗設備、刀具與材料 25
3.1.1 CNC三軸切削中心機 25
3.1.2 表面粗糙度量測儀 26
3.1.3銑削刀具 29
3.1.4 加工材料 30
3.2 實驗步驟 31
3.3 實驗流程 32
3.4實驗參數 33
3.4.1 進給方向實驗參數 34
3.4.2 路徑間隔方向實驗參數 37
第四章　實驗結果與分析 39
4.1 進給方向結果分析 39
4.1.1 實驗數據量測 39
4.1.2 進給方向粗糙度εfc回歸 39
4.1.3 進給方向比較誤差 41
4.1.4 銑刀半徑[R=3mm]進給方向之影響 42
4.2路徑間隔結果分析 44
4.2.1 實驗數據量測 44
4.2.2 路徑間隔方向粗糙度εlc回歸 46
4.2.3路徑間隔方向比較誤差 47
4.2.4銑刀半徑[R=3]路徑間隔之影響 48
第五章　結論與未來展望 50
5.1 結論 50
5.2 未來展望 52
參考文獻 53

[1].Shaw,M.C.(1984). Metal Cutting Principles, Oxford University Press.
[2].Benardos,P.G., and Vosniakos,G.C.,(2003) “Predicting surface roughness in machining: a review,” International Journal of Machine
Tools & Manufacture, Vol. 43, pp. 833-844.
[3].Lo, C.C.,(1998) "A New Approach to CNC Tool Path Generation," Computer-Aided Design, Vol. 30 (8), 649-655.
[4].Chen,Y.D., Ni,J. and Wu,S.M.,(1993) "Real-Time CNC
Tool Path Generation for Machining IGES Surfaces," ASME Journal of Engineering for Industry, Vol. 115, 480-486.
[5].Loney,G.C., Ozsoy,T.M.,(1987) "NC Machining of Free Form
Surfaces," Computer-Aided Design, Vol. 19, No. 2, pp. 85-90.
[6].Lin,R.S., and Koren,Y.,(1996) "Efficient tool-path planning for
machining free-form surfaces," ASME Journal of Engineering for Industry, Vol. 118, February, 20-28.
[7].Suresh,K. and Yang,D.C.H., (1994)"Constant Scallop-Height Machining of Free-Form Surfaces," ASME Journal of Engineering for Industry, Vol. 116 , 253-259.
[8].Abouelatta,O.B., Madl,J.,(2001) “Surface roughness prediction based on cutting parameters and tool vibrations in turning operations,” Journal of Materials Processing Technology, Vol. 118, 269-277.
[9].Feng,C.X.J., Wang,X.,(2002) “Development of empirical models for surface roughness prediction in finish turning,” International Journal of Advanced Manufacturing Technology,Vol. 20, 348-356.
[10].Diniz,A.E., Filho,J.C.,(1999) “Influence of the relative positions of tool and workpiece on tool life, tool wear and surface finish in the face milling process,” Wear, Vol. 232, 67-75.
[11].Heisel,U.,(1994) “Vibrations and surface generation in slab milling,” CIRP Annals, Vol. 43, 337-340.
[12].Fuh, K.H., Wu,C.F.,(1995) “A proposed statistical model for surface quality prediction in end milling of Al alloy,” International Journal of Machine Tools and Manufacture, Vol. 35, 1187-1200.
[13].Mansour,A., Abdalla,H.,(2002) “Surface roughness model for end milling: a semi-free cutting carbon casehardening steel (EN32) in dry condition,” Journal of Materials Processing Technology, Vol. 124, 183-191.
[14].Alauddin,M.,El-Baradie,M.A.,Hashmi,M.S.J.,(1995)“Computer-aided analysis of a surface roughness model for end milling,” Journal of Materials Processing Technology,Vol. 55, 123–127.
[15].MartellottiM.E,(1941) “An Analysis of the Milling Process”, Transactions of the ASME, Vol.63,677-700
[16].Dae Kyun Baek ,Tae Jo Ko , Hee Sool Kim, (2001) “Optimization of feedrate in a face milling operation using a surface roughness model,” International Journal of Machine Tools & Manufacture , vol.41 , 451–462
[17].Jenq-Shyong By Chen*, Yung-Kuo Huang, Mao-Son Chen“Feedrate optimization and tool profile modification for the high-efficiency ball-end milling process”
[18].尤世承(2009)。球型端銑刀加工曲面之表面粗糙度及精度探討。華梵大學機電工程學系博碩專班。
[19].M.tolouei-rad and I.M.bidhendi,(1997) “On the optimization of machining parameters for milling operations,” Int. J. Mach. Tools Manufact,Vol. 37, No. I, 1-16,
[20].R. Baptista, J.F. Antune Simoes, (2000) “Three and five axes milling of sculptured surfaces,” Journal of Materials Processing Technology 103 398-403,
[21].Philippe Belloy , Emmanuel Foucard, “Roughness and materials in concurrent engineering systems” , Mechanical Systems and Concurrent Engineering Laboratory, 12, rue Marie Curie, B.P 2060,10010 Troyes Cedex, France
[22].M. Alauddin, M.A. E1 Baradie,M.S.J. Hashmi, “Computer-aided analysis of a surface-roughness model for end milling ”, Journal of Materials Processing Technology 55(1995)123-127
[23].M. Alauddin,M.A. E1 Baradie and M.S.J.Hashmi, (1996) “Optimization Of Surface Finish In End Milling Inconel 718” , Journal of Materials Processing Technology 56,54-65
[24].Azlan Mohd Zain , Habibollah Haron , Safian Sharif, (2010) “Prediction of surface roughness in the end milling machining using Artificial Neural Network”, Expert sustems with Applications 37,1755-1768
[25].俞漢清(1997)。表面粗糙度標準及應用。中國計量出版社。
[26].吳燦明(2005)。機率與統計，高立圖書有限公司。
[27].呂建興(2011)。球銑加工表面粗糙度之分析，逢甲大學碩士論文。
[28].李鈞澤(2001)。「新版切削刀具學」，新文京開發出版有限公司。