相較於傳統沖壓成形技術，管材液壓成形是一種相當新穎之成形技術，但在製程參數及模具設計等相關資料庫與知識技術上仍相當缺乏。
本研究為了進行管材液壓鼓脹成形之各項實驗，利用液壓鼓脹成形試驗機台，將UNS C26800鋅銅銅管、AISI 1215碳鋼鋼管進行鼓脹並測量鼓脹過程中的壓力、鼓脹高度。將上述數據代入液壓鼓脹成形之數學模式以反推UNS C26800鋅銅銅管、AISI 1215碳鋼鋼管塑流應力之初始降服應力σ0、強度係數K值及應變硬化指數n值。此外將管材製成拉伸試片進行單軸拉伸試驗求得材料的σ0、K值及n值，並將兩種數據進行比較。
在實驗方面，以300℃與500℃兩種退火溫度處理過之UNS C26800鋅銅銅管及未退火之AISI 1215碳鋼鋼管為實驗管材，執行相關之實驗工作。另外，亦使用有限元素套裝軟體進行上述之加工條件對鼓脹高度、成形壓力之影響。由實驗與解析結果之比較，探討管材於鼓脹成形過程中之變形機制。

In contrast to traditional stamp shaping techniques, tube hydroforming is a realively new shaping technique. But there are still a lack of engineering parameters, mold designs data bases and technique knowledge in this area.

This research conducts various tube hydraulic bulge forming experiments, using hydraulic bulge forming testing machines. The pressure and bulge height for UNS C26800 zinc-copper tubing and AISI 1215 carbon steel tubing are measured. The above data are substituted into a hydraulic pressure bulge mathematic model to derive UNS C26800 zinc-copper and AISI 1215 carbon-steel tubes flow stress parameters of initial yielding stress σ0、coefficient K value and contingency index n value. Moreover, tensile test of the above materials are conducted to the material’s σ0、K and n values. then proceed with a comparison of the two sets of statistics.

In bulge tests, UNS C26800 zinc-copper tube annealed with temperatures of 300℃ and 500℃ and the not-yet annealing AISI 1215 carbon-steel tube without annealing are used. Additionally, finite element package software is used to simulate the bulge-height and forming pressure.
From the comparisons of experimental and analytic results, the deformation mechanisms of tube during the bulge-shaping discussed.

目錄I
圖目錄VI
表目錄VII
符號說明VIII
中文摘要X
英文摘要XI
第一章 緒論1
1-1 前言1
1-2 THF製程之簡介3
1-2-1 管材液壓成形之影響因素4
1-2-2 成形設備與技術5
1-3 管材液壓鼓脹成形之文獻回顧.6
1-4 本文之研究目的9
1-5 本論文之架構10
第二章 單軸拉伸試驗之實驗結果13
2-1 管材之單軸拉伸試驗.13
2-2 萬能拉伸試驗機13
2-3 拉伸試片之製作13
2-4 材料塑流應力之求得14
2-4-1 異方性r值之求得15
2-5 材料拉伸試驗結果17
2-5-1 拉伸試驗結果17
2-5-2 異方向性r值之求得17
第三章 管材液壓鼓脹成形之試驗26
3-1 管材之液壓鼓脹試驗26
3-2 實驗週邊設備及量測儀器26
3-2-1 管材液壓鼓脹試驗機台26
3-2-2 量測儀器28
3-3 試驗管材之準備.30
3-4 退火處理溫度－時間之設定32
3-4-1 退火之目的32
3-5 模具設計與製作33
3-6 管材之試驗步驟35
3-7 實驗結果與討論36
3-7-1 實驗規劃36
3-7-2 數學模式37
3-7-3 最小均方根法之數學模式推導39
3-7-4 鋅銅管材未退火之鼓脹試驗41
3-7-5 鋅銅管材未退火之鼓脹試驗41
3-7-6 碳鋼管材之鼓脹試驗42
3-8 鼓脹後之塑流應力係數求得42
3-8-1 等方向性鋅銅管材鼓脹後之塑流應力係數42
3-8-2 等方向性碳鋼管材鼓脹後之塑流應力係數43
3-8-3 非等方向性鋅銅管材鼓脹後之塑流應力係數44
3-8-4 非等方向性碳鋼管材鼓脹後之塑流應力係數44
第四章 模擬及實驗結果與討論63
4-1 DEFORM簡介63
4-2 有限元素模擬參數設定64
4-3 有限元素法模擬結果與實驗值之比較65
4-3-1 500℃鋅銅管材65
4-3-2 碳鋼管材實驗結果66
第五章 結論71
5-1 研究結果之概要71
5-2 今後研究之課題72
參考文獻73

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