臺灣博碩士論文加值系統

在研磨加工中，加工件的品質受到切削液影響非常大。在研磨加工中主要目的是將大量的金屬磨除，在這種情形下，切削液需要較小的潤滑效果，和需要較大的清潔能力，以確保加工件本身的清潔。本論文內容探討兩大部分，第一部分研討不同油水比研磨液的磨潤性能，利用四球式磨耗實驗探討不同油水比的研磨液在對磨痕直徑、摩擦係數、研磨液油溫的影響，第二部分為要以中碳鋼材料使用平面磨床進行平面磨削後的表面粗糙度品質之研究，比較不同的磨削加工參數如砂輪粒度(A)、床台移動速率(B)、研磨進給量(C)、油水比(D)等對工件的表面粗糙度之影響，進而決定最佳化的參數組合，並搭配第一部分所得到的結果，探討與觀察研磨液油水比在研磨加工的影響，及研究油水比對實驗結果的影響程度。
第一部分不同濃度的研磨液之潤滑性能結果中發現，研究結果顯示切削液濃度比10 wt%可以得到最佳的切削潤滑效益，在不同濃度的比較下，磨痕直徑及摩擦係數為最低，油溫變化則與其他實驗差異甚小。
第二部分是使用田口法直交表L₉(3⁴)進行實驗配置，再經由S/N比求解最佳磨削參數組合為A1、B1、C1、D2，並以變異數分析探究得知油水比(D)對實驗的結果具最大影響，因數砂輪粒度(A)、床台移動速率(B)、研磨進給量(C)的影響程度較小。證實油水比10 wt%確實優於其他油水比例，可有效提昇研磨粗糙度品質水準之目標。

In grinding processes, the quality of the workpiece is greatly influenced by the cutting fluid. In general, in rough grinding processes, the main purpose is to remove a large amount of metal. In such cases, the cutting fluid requires less lubrication and more cleaning ability to ensure the cleanliness of the workpiece. This paper discusses two main parts. The first part investigates the tribological performance of grinding fluids with different oil-water ratios. Using a four-ball wear test, the effects of different oil-water ratios on the wear scar diameter, friction coefficient, and oil temperature of the grinding fluid are studied.
The second part focuses on the study of surface roughness quality after plane grinding using medium carbon steel material on a surface grinding machine. The effects of different grinding parameters such as grinding wheel grit size (A), table speed (B), grinding feed rate (C), and oil-water ratio (D) on the surface roughness of the workpiece are compared. The optimal parameter combination is determined, and in conjunction with the results obtained in the first part, the influence of the oil-water ratio in the grinding process is observed. The study also analyzes the degree of influence of the oil-water ratio on the experimental results.
In the first part, it was found that the best cutting lubrication performance can be achieved with a cutting fluid concentration of 10 wt%. Among different concentrations, the wear scar diameter and friction coefficient were the lowest at this concentration, and the variation in oil temperature was minimal.
In the second part, the Taguchi method L₉(3⁴) orthogonal array was used for experimental design, and the optimal grinding parameter combination was determined as A1, B1, C1, and D2 through the S/N ratio analysis. Variance analysis revealed that the oil-water ratio (D) had the greatest impact on the experimental results, while the effects of the factors grinding wheel grit size (A), table speed (B), and grinding feed rate (C) were relatively small. It was confirmed that the 10 wt% oil-water ratio was indeed superior to other ratios in effectively improving the surface roughness quality level of grinding.

摘要....i
Abstrac....ii
誌謝....iv
目錄....v
表目錄....vii
圖目錄....viii
第一章 緒論....1
1.1 前言....1
1.2 研究動機與目的....1
1.3 文獻回顧....1
1.3.1 潤滑油相關文獻....1
1.3.2 四球式相關文獻....2
1.3.3 油水比不同的影響相關文獻....3
1.4 論文架構....3
第二章 基礎理論....5
2.1 磨潤學....5
2.1.1 史崔派克圖....5
2.2 砂輪簡介....6
2.2.1 砂輪標示方法....6
2.2.2 磨料特性與應用....7
2.2.3 磨料粒度....8
2.2.4 磨料硬度(結合度)....8
2.2.5 磨料組織(氣孔)....9
2.2.6 砂輪的製造方法....9
2.3 磨削原理....10
2.3.1 研磨切削速度計算....10
2.4 表面粗糙度....10
2.4.1 表面粗糙度表示方法....11
2.5 研磨拋光理論....13
第三章 實驗方法與儀器....15
3.1 實驗方法....15
3.2 四球式磨耗試驗機....15
3.2.1 四球磨耗公式與原理....17
3.2.2 四球磨耗試驗機與實驗條件....17
3.2.3 四球磨耗注意事項....17
3.2.4 四球磨耗注意事項....19
3.3 光學顯微鏡(OM)....19
3.3.1 光學顯微鏡實驗步驟....19
3.3.2 光學顯微鏡注意事項....20
3.4 三維光學顯微鏡(白光干涉儀)....20
3.4.1 三維光學顯微鏡實驗步驟....21
3.4.2 三維光學顯微鏡注意事項....21
3.5 半自動平面磨床....22
3.5.1 半自動平面磨床實驗條件....23
3.6 實驗油品....24
3.7 平面砂輪....25
3.8 加工材料....25
第四章 結果與討論....26
4.1 四球磨耗實驗....26
4.1.1 四球實驗油水比分析....26
4.1.2 四球磨耗磨痕直徑分析....30
4.1.3 四球磨耗實驗油溫分析....31
4.1.4 四球磨耗實驗摩擦係數分析....32
4.1.5 四球磨耗表面形貌分析....32
4.2 田口法實驗設計....34
4.3 實驗分析....35
4.3.1 S/N比計算....35
4.3.2 S/N比平均值反應圖表分析....36
4.3.3 各因數變異數分析....37
4.3.4 最佳參數加法模式預測....37
4.4 最佳化參數驗證結果....38
第五章 結論與未來展望....40
5.1 結論....40
5.2 未來展望....40
參考文獻....41
Extended Abstract....43

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