本研究係使用定深度之摩擦攪拌銲接機，以肩部直徑12 mm、嵌入料直徑10 mm和長7 mm之內嵌式銲接工具，進行厚度2 mm鋁合金板對厚度2 mm氧化鋁板之摩擦攪拌點銲搭接實驗。焊接後進行拉伸試驗以測量破壞負荷並觀察其破斷面，探討下壓深度對銲點外觀和銲接品質之影響，瞭解銲接過程之接合機制。
在固定工具轉速1000 rpm、下壓時間10秒和持壓時間160秒條件下，測試的下壓深度包括0.9、1.1、1.3、1.5和1.6 mm，共進行5組，結果發現在下壓深度1.5 mm時的下壓力已達到飽和。而在拉剪破壞的結果中，0.9 mm的破壞負荷為472 N，破壞負荷隨著下壓深度的增加而逐漸上升，到了下壓深度1.5 mm時的破壞負荷則到達1770 N，但是到了1.6 mm時則下降為818 N。在相同銲接參數下比較使用不同銲接工具的影響，結果顯示使用無探針工具的破壞負荷只有975.5N，大約是使用嵌入式工具的的55%。

In this study, the friction stir spot welding (FSSW) is conducted at a constant plunge depth to lap weld the Al alloy and alumina with thickness of 2 mm for both. A hollow shoulder made of high speed steel with a 12 mm outer diameter is inserted a 7 mm long rod made of Al alloy with a 10 mm diameter to form an embedded rod tool. After welding, a shear tensile test is conducted to measure the failure load and observe the fractured surface. The effect of plunge depth on the weld appearance and welded quality is investigated to understand the bonded mechanism in this lap process.
Five plunge depths are tested, including 0.9, 1.1, 1.3, 1.5 and 1.6 mm at a rotation speed of 1000 rpm, plunge time of 10 s and dwell time of 160 s. Results show that the downward load achieves a saturated value at the plunge depth of 1.5 mm. The failure load of plunge depth of 0.9 mm is 472 N, and it increases along with the plunge depth. The failure load is 1770 N at the plunge depth of 1.5 mm, but it decreases to 818N at 1.6 mm. At the same welding parameters, the failure load using a plain tool is 975.5N, which is about 55% of that using embedded tool.

論文審定書 i
致謝 ii
摘要 iii
Abstract iv
目 錄 v
圖 次 vii
表 次 x
第一章 緒論 1
1.1 前言 1
1.2 文獻回顧 5
1.2.1 鋁合金之摩擦攪拌點銲搭接 5
1.2.2 拉伸試驗的破壞型態 7
1.2.3 金屬對陶瓷之銲接 8
1.3 研究目的 12
第二章 實驗設備與實驗方法 14
2.1 實驗設備 14
2.1.1 夾持模組 15
2.1.2 負荷量測模組 15
2.2 摩擦攪拌銲接試片與工具 16
2.2.1 銲接試片材料特性 16
2.2.2 銲接工具幾何外觀 19
2.3 實驗治具的設計 20
2.4 溫度加熱裝置的設計 23
2.4.1 加熱塊 23
2.4.2 電熱管 24
2.4.3 溫度控制器 25
2.5 實驗方法 26
2.5.1實驗參數規劃 26
2.5.2銲接位置 26
2.5.3實驗前處理 27
2.5.4實驗步驟 28
2.6接合面溫度校正 29
2.7拉剪強度試驗 30
2.8實驗流程 31
第三章 結果與討論 32
3.1 溫度校正 32
3.1.1 陶瓷試片之耐熱衝擊溫度 33
3.1.2 接合面溫度校正 34
3.2 鋁合金6061-T6對氧化鋁96之銲接 35
3.2.0 前導實驗 35
3.2.1不同下壓深度對破壞負荷之影響 37
3.2.2相同參數下不同銲接工具的比較 40
3.3 銲點剖面觀察 43
3.4 破斷面SEM之觀察 47
第四章 結論與未來展望 50
4.1結論 50
4.2未來展望 51
參考文獻 52

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