無心研磨製程參數優化研究

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姓名

藍正昌(Chang-cheng Lan) 查詢紙本館藏

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機械工程學系在職專班

論文名稱

無心研磨製程參數優化研究
(Centerless grinding optimization of process parameters)

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摘要(中)

在研磨相關硬脆材質的材料時，其研磨的加工過程中，穩定性的部分在工件夾持的系統(砂輪、調整輪、刀板間的調整加工狀態)中是較易受影響的。而無心研磨只有在設置參數為最佳時才能生產出高生產力、高精密的產品。本文介紹了研磨系統就穩定性的幾個標準條件並提出了指導方針，如何正確選擇研磨加工設置之條件，以避免共振、打滑、顫紋及圓筒度相關的問題。最後，運用演算的方式提供最佳的參數設置條件來增加其製程穩定性及加工效率，除了可以透過製程加工研發之參數及條件外並可以增加其效率並降低其成本，基於製程之目標提出模擬之結果並進行相關的應用潛力。

摘要(英)

Centerless grinding process is widely used in producing the extra-smooth surface, particularly in the hard and brittle materials such as aluminum oxide (Al2O3), zirconium oxide (Zr2O3) and silicon carbide (SiC). The stability of the centerless grinding process is very sensitive to the set-up conditions due to the uniqueness of the work-holding system.
Centerless grinding produces precision components with high productivity only when the set-up condition is optimally chosen .This thesis describes the effect of set-up conditions on the stability criteria of the centerless grinding system . Guidelines are proposed for determining proper set-up conditions to avoid spinners, chatter vibration and roundness problems. Finally, the optimum set-up condition based on experiments are proposed and the validation results are discussed.

關鍵字(中)

★ 無心研磨
★ 最佳化
★ 研磨製程穩定化
★ 圓筒度

關鍵字(英)

★ Centerless grinding
★ Optimization
★ Process stability
★ Cylindricity

論文目次

中文摘要…………………………………………………………………………………………………………………………………i
英文摘要………………………………………………………………………………………………………………………………ii
目錄 ………………………………………………………………………………………………………………………………………v
圖目錄…………………………………………………………………………………………………………………………………vi
表目錄…………………………………………………………………………………………………………………………………ix
第一章緒論………………………………………………………………………………………………………………1
1-1 前言………………………………………………………………………………………………………………………2
1-2 研磨之流程…………………………………………………………………………………………………………3
1-3 無心研磨真圓度、圓筒度、表面粗糙度介紹……………………………………6
第二章基本原理……………………………………………………………………………………………………………19
2-1 研磨概論……………………………………………………………………………………………………………………19
2-2 拋光概論……………………………………………………………………………………………………………………23
2-3 基本研磨加工之介紹……………………………………………………………………………………………28
第三章實驗配置與步驟………………………………………………………………………………………………29
3-1 實驗之材料………………………………………………………………………………………………………………29
3-2 實驗之設備………………………………………………………………………………………………………………36
3-3 實驗之檢驗儀器……………………………………………………………………………………………………38
3-4 磨輪之選用………………………………………………………………………………………………………………41
3-5 研磨之注意事項……………………………………………………………………………………………………44
第四章實驗結果與討論………………………………………………………………………………………………47
4-1 硬脆材質材料研磨之穩定性實驗結果…………………………………………………………47
4-2 硬脆材質材料研磨之Roundness分析…………………………………………………………50
4-3 硬脆材質材料研磨之實驗結果………………………………………………………………………53
4-4 研磨硬脆材質材料之不良品分析…………………………………………………………………56
第五章結論與建議……………………………………………………………………………………………………61
參考文獻……………………………………………………………………………………………………………………………62

參考文獻

〔1〕F. Hashimoto (2), G.D. Lahoti (1) Timken Research,The Timken Company,Canton,OH, USA ,2004 , Optimization of Set-up Conditions for Stability of The Centerless Grinding Process .
〔2〕Hashimoto, F., Lahoti, G. and Miyashita, M.,1998 , Safe Operations and Friction Characteristics of Regulating Wheel in Centerless Grinding,Annals of the CIRP ,47/1:281-286 .
〔3〕S. Steven Zhou, The Timken Company; George C. Petrosky, University ofConnecticut; USA Submitted by Richard P. Lindsay (1) Received on January 9, 1997 ; improving Workpiece Roundness through Centerless Grinding Cycle Optimization .
〔4〕Hashimoto, F., Zhou, S. S, Lahoti , G. D. and Miyashita, M, 2000 ,Stability Diagram for Chatter Free Centerless Grinding and its Application in Machine Development, Annals of the CIRP, 49/1:225-230 .
〔5〕Hashimoto, F., Kanai, A. and Miyashita, M., 1984 ,Growing Mechanism of Chatter Vibrations in Grinding Processes and Chatter Stabilization Index of Grinding Wheel ,Annals of the CIRP, 33/1:259-263 .
〔6〕Dall, A. H., 1946, Rounding Effect in Centerless Grinding ,Mech. Eng.,4:325-329 .
〔7〕Reeka, D., 1967, On the Relationship between the Geometry of the Grinding Gap and Roundness Error in Centerless Grinding ,Ph.D. Diss., T.H. Aachen Rowe, W. B., Miyashita, M.and Koenig, W., 1989 ,Centerless Grinding Research and Its Application , Annals of the CIRP, 38/2: 617-624 .

指導教授

傅尹坤(Yiin-Kuen Fuh)

審核日期

2016-1-22

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