本論文之主旨在於應用超音波輔助撓性夾具車削。首先利用電腦輔助設計和有限元素法進行模擬分析，設計完成後以線切加工製作尺寸精度高之撓性刀具座，再設計一平台固定刀具座並連結超音波振盪器來達到撓性振動切削的效果。
車削實驗結果顯示，加入振動之撓性刀具座除了進給0.04mm/rev以下，其餘切削條件皆優於剛性車削。粗糙度改善率隨著進給增加平均可達8.29%，最高可達27.35%；進給切削力改善率平均為23.4%，最高可達73%；垂直切削力改善率平均為28%，最高可達55.6%。

The purpose of this thesis is to develop the effect of ultrasonic-assited turing by using a flexible fixture to the machining of aluminum alloys compared with traditional fixture. At first , the computer-aided design and finite element method is used to analyze it’s structural property. Second, we use electric discharge wire-cut machining to make high-precision flexible fixture. Finally, we design the plane for turning by using flexible fixture which is connect with an oscillator for the purpose of vibratory machining.
The experiment results show the surface roughness of workpiece is improved by using ultrasonic-assited flexible fixture except when the feed is less than 0.04mm/rev;the horizontal force and the vertical force reduce averagely 28% and 23.4%,respectively.

目錄

摘要 II
ABSTRACT III
目錄 IV
表目錄 VII
圖目錄 IX
1-1 前言 1
1-2 文獻回顧 1
1-2-1 撓性夾具理論 1
1-2-2 超音波輔助車削 3
1-3 研究動機與目的 5
第二章 實驗流程與相關理論 6
2-1 實驗流程 6
2-2 有限元素法 6
2-3 直交表實驗歸劃法 8
2-4 反應曲面法 10
2-5 表面粗糙度 12
2-6振動輔助車削原理與應用 14
2-6-1切削中的振動與振顫 14
2-6-2 振動切削原理 15
2-6-3 磁致伸縮材料與超音波震盪器 15
第三章 撓性夾具之設計與分析 17
3-1 撓性夾具設計理念 17
3-2 撓性夾具分析 20
3-2-1分析過程 20
3-3 振動輔助撓性夾具車削之概念設計 26
第四章 實驗設備與實驗規劃 27
4-1 實驗設備 27
4-1-1 CNC車床 27
4-1-2 切削刀具與材料 29
4-1-3 三軸向微動力計 30
4-1-4 聲波放大器與超音波震盪器 31
4-1-5 表面粗糙度儀 32
4-2 實驗規劃 33
第五章 實驗結果與分析 38
5-1 車削實驗結果 38
5-1-1剛性夾具與撓性夾具實驗結果 38
5-1-2振動輔助撓性夾具實驗結果 40
5-2 粗糙度實驗結果統計資料分析 45
5-2-1 統計檢定 45
5-2-2 表面粗糙度迴歸關係圖 49
5-3-1切削力實驗結果 58
5-3-2進給方向(Fy)切削力量測 59
5-3-3垂直方向(Fz)切削力量測 62
5-3-4 切削力與表面粗糙度迴歸關係圖 64
第六章 結論與未來展望 66
6-1 結論 66
6-2 未來展望 66
參考文獻 67

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