本研究使用組合式銲接工具對2 mm厚鍍鋅鋼板/ 10 mm厚鋁合金進行摩擦攪拌搭接。固定預熱時間與擠壓負荷，探討進給銲接之主軸轉速與進給速率對鍍鋅鋼板/鋁合金接合強度之影響。在主軸轉速800 rpm與進給速率125 mm/min條件下，其接合強度可以達到13 kN.
由進給銲接之接合強度結果，選擇接合強度較佳之銲接參數，作為雙銲道之操作條件，在預熱時間20秒、擠壓負荷13 kN、主軸轉速600 rpm與進給速率125 mm/min條件下，成功完成雙銲道銲接，其接合強度提高1.3倍。
此外，在接合界面含助銲劑情況下，探討助銲劑對碳鋼/鋁合金接合強度之影響。在預熱時間60秒、擠壓負荷13 kN、主軸轉速800 rpm與進給速率60 mm/min條件下，接合界面添加助銲劑相較於無助銲劑，其接合強度較差。故在接合界面添加助銲劑之情況下，雖能有效防止工件接合界面周圍氧化，但在相同操作條件下，其接合強度較差。

In this study, friction stir lap welding was performed using the assembled-type tool for zinc-coated steel sheet 2 mm thick on aluminum alloy sheet 10 mm thick. Effects of rotating speed and feeding rate on the joint strength are investigated at a certain of the dwell time and the downward force. Results show that the strength of the joint of 13 kN is obtained under the condition of the rotating speed of 800 rpm, and the feeding rate of 125 mm/min.
According to the measured joint strength in a single pass, the better are selected for the two passes. Results show that the joint strength is for the two passes 1.3 times as high as that of the joints for a single pass at the dwell time of 20 s, the downward force of 13 kN, the rotating speed of 600 rpm, and the feeding rate of 125 mm/min.
Moreover, the flux added is on the interface between steel and aluminum alloy sheets to investigate its influence on the joint strength. Results show that the joint strength with a flux is poorer than that of the joint without flux at the dwell time of 60 s, the downward force of 13 kN, the rotating speed of 800 rpm, and the feeding rate of 60 mm/min. Flux can effectively prevent the oxidation around the interface between the sheets, but the joint strength is poorer.

學位論文審定書 i
致謝 ii
摘要 iii
Abstract iv
總目錄 iv
圖次 vii
表次 xii
第一章 緒論 1
1.1 前言 1
1.2 摩擦攪拌銲接概述 2
1.3文獻回顧 4
1.3.1摩擦攪拌銲接 4
1.3.2銲接工具材料選用與幾何形狀 6
1.3.3銲接工具之幾何形狀 6
1.3.4鋁鋼之摩擦攪拌銲接 10
1.3.5摩擦攪拌銲接之銲道組織 13
1.4 研究目的 15
第二章 實驗設備與程序 16
2.1 實驗設備 16
2.1.1 定負荷摩擦攪拌銲接平臺 17
2.1.2 定負荷系統 18
2.1.3 位移量測設備-位移計 18
2.1.4 溫度量測設備-數位溫度計 19
2.1.5 負荷量測設備-負荷計 20
2.1.6 量測系統 21
2.1.7 進給模組 21
2.2 銲接工具之選用與設計 22
2.2.1 組合式摩擦攪拌銲接工具之材質選用及幾何形狀 22
2.2.2 嵌入料之材質選用及幾何形狀 23
2.3 助銲劑之選用 24
2.4 實驗工件之選用 26
2.4.1 實驗工件之材料特性 26
2.4.2 實驗工件之幾何形狀 27
2.4.3量測接合界面溫度工件之準備 29
2.5 底部絕熱材料之選用 31
2.6 背部墊塊之選用 31
2.7 實驗程序 32
2.7.1 實驗參數規劃 32
2.7.2 工件前處理 34
2.7.3 銲接工具之表面處理 35
2.7.4 實驗步驟 35
2.8 拉伸試驗之工件準備 38
2.9 金相觀察之工件取樣 40
2.10 實驗流程 41
第三章 結果與討論 42
3.1 碳鋼/鋁合金之單銲道搭接實驗 42
3.2 鍍鋅鋼板/鋁合金之單銲道搭接實驗 46
3.2.1 鍍鋅鋼板/鋁合金之單銲道搭接可行性 47
3.2.2 鍍鋅鋼板/鋁合金之單銲道搭接參數範圍 48
3.2.3 不同銲接參數對鍍鋅鋼板/鋁合金界面溫度量測結果之影響 49
3.3 鍍鋅鋼板/鋁合金之拉伸破壞強度 55
3.3.1 不同進給速率對於銲接品質之影響 55
3.3.2 不同轉速對於銲接品質之影響 55
3.4 破斷面之接合強度 57
3.5 鍍鋅鋼板/鋁合金之金相觀察 58
3.5.1 銲道剖面外觀與金相觀察 58
3.5.2 銲道之搭接界面觀察 59
3.6 雙銲道之摩擦攪拌進給銲接 60
3.7 碳鋼/鋁合金被覆板之前導實驗 62
3.7.1 改善工件氧化之方法 62
3.7.2 銲接時間之選擇 65
3.7.3 助銲劑濃度之選擇 66
3.8 碳鋼/鋁合金被覆板摩擦攪拌點銲之溫度與位移量測值 67
3.8.1 不同助銲劑之銲接界面溫度量測之結果 67
3.8.2 位移及擠壓負荷與銲接界面溫度之關係 70
3.9 碳鋼/鋁合金被覆板之單銲道搭接實驗之拉伸破壞強度 74
3.10 碳鋼/鋁合金被覆板之單銲道搭接實驗之拉伸破壞強度 74
3.10.1 使用無嵌入料銲接工具之碳鋼/鋁合金被覆板之拉伸破壞強度 74
3.10.2 使用嵌入料銲接工具之碳鋼/鋁合金被覆板之拉伸破壞強度 75
3.11 被覆板之雙銲道摩擦攪拌進給銲接 76
第四章 結論與未來展望 78
4.1 結論 78
4.2 未來展望 79
參考文獻 80

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