臺灣博碩士論文加值系統

Inconel 718鎳基合金高溫下可維持高強度，且具有優異的抗潛變、抗疲勞等機械性質，於航太產業廣泛運用。運用與需求越來越大的同時，此類合金加工的文獻與實驗數據卻相較不足。參照一些文獻的加工配置刀具斷裂的情況雖然有改善，但對於車床加工需求0.02mm以下的加工精度還是無法達成，為了突破這個困難點，本文以Inconel 718 鎳基合金車削最佳參數的探討為目的開始進行研究。
本文使用田口方法分析車削最佳參數，以主軸轉速、進給、切削深度的改變進行實驗，再將實驗後誤差值運用望小品質特性計算，取得SN比分析結果，最後藉由長度差值與SN結果表、各因子長度差值回應表及控制因子長度差值對S/N比反應圖分析，取得車削參數的最適條件。
實驗結果發現田口分析車削長度差值貢獻度大小依序為：主軸轉速＞切削深度＞進給之順序關係。車削最佳參數為主軸轉速1100(rpm) 、切削深度0.1(mm) 、進給0.1(mm/rev)，同樣切削50次後的目標車削長度與實際車削長度間的誤差值為0.007mm。
關鍵詞: Inconel 718、田口方法、車削

Inconel 718 nickel-based alloy maintains high strength at high temperatures and has excellent mechanical properties such as resistance to creep and fatigue, and is widely used in the aerospace industry. At the same time as the application and demand are getting larger and larger, the literature and experimental data of such alloy processing are insufficient. According to some literatures, although the tool fracture is improved, the machining accuracy of 0.02mm or less for lathe machining is still Unable to achieve, in order to break through this difficult point, this article began to study the best parameters of Inconel 718 nickel-based alloy turning.This paper uses the Taguchi method to analyze the optimal turning parameters, and uses the spindle speed, feed, and cutting depth to change the experiment. Then the error value after the experiment is used to calculate the small quality characteristic, and the SN ratio analysis result is obtained. Finally, the length difference value and The SN result table, length difference of each factor response table and the length difference of control factors were analyzed on the S / N ratio map to obtain the optimal conditions for turning parameters.
The experimental results show that the Taguchi analysis of the length difference of turning length contribution is: spindle speed> depth of cut> feed sequence relationship. The optimal parameters for turning were spindle speed 1100 (rpm), depth of cut 0.1 (mm), feed 0.1 (mm/rev), and the error between the target turning length and the actual turning length after 50 cuttings was 0.007 mm.
Keywords: Inconel 718, Taguchi method, Turning

目 錄

書名頁 …………………………………………………………… i
論文口試委員審定書 ………………………………………… ii
授權書 ………………………………………………………… iii
中文摘要 ………………………………………………………… iv
英文摘要 ………………………………………………………… vi
誌謝 ……………………………………………………………… viii
目錄 ……………………………………………………………… ix
圖目錄 ………………………………………………………… xi
表目錄 ………………………………………………………… xii
符號說明 ……………………………………………………… xiii
第一章、緒論 …………………………………………………… 1
第二章、實驗內容與理論 ……………………………………… 8
2.1 車削加工簡介 ……………………………………… 8
2.2 實驗設備 ………………………………………… 11
2.3 切削條件 ………………………………………… 13
2.4 參數影響 ………………………………………… 17
2.5 實驗原理 ………………………………………… 20
2.6 實驗方法 ………………………………………… 23
第三章、實驗部分 ……………………………………………… 27
3.1 參數訂定 ………………………………………… 27
3.2 參數實驗 ………………………………………… 29
3.3 數據分析與結果 ………………………………… 29
3.4 實驗再確認 ……………………………………… 32
第四章、 結論 …………………………………………………… 34
參考文獻 ………………………………………………………… 36

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