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研究生:邱翰傑
研究生(外文):han-jie Khoo
論文名稱:雙向擠製模擬之摩擦因子於擠製應用
論文名稱(外文):A friction factor found by the computer simulation of double cup extrusion is applied to an extrusion
指導教授:黃德福黃德福引用關係
學位類別:碩士
校院名稱:國立高雄應用科技大學
系所名稱:模具工程系碩士班
學門:工程學門
學類:機械工程學類
論文種類:學術論文
論文出版年:2007
畢業學年度:95
語文別:中文
論文頁數:76
中文關鍵詞:雙向擠製摩擦因子有限元素分析
外文關鍵詞:Double Cup ExtrusionFriction FactorFEM Simulation
相關次數:
  • 被引用被引用:2
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  • 下載下載:0
  • 收藏至我的研究室書目清單書目收藏:1
本研究是利用雙向擠製( Double Cup Extrusion )之特性模擬摩擦因子( Friction Factor ),應用於擠製加工。使用圓形胚料經過不同幾何形狀的模具出口如圓形、六角形、方形等擠製時,模擬被擠材流動、擠製負荷和製品應力和應變之分佈。探討模具出口之半模角、模具出口之幾何形狀、不同擠製比和改變摩擦因子,對於擠製負荷的應力及應變之影響。利用有限元素( FEM )的分析軟體Deform 3D模擬在不同擠製加工條件時,材料的流動行為和成形的負荷,並獲得在擠製加工中所能產生最小應力之最佳模具形狀。
A friction factor found by the computer simulation of the double cup extrusion is applied to an extrusion through many different geometries of the exit of the die. The deformations of a rod through an extrusion die; round, hexagon and square, are also simulated by computer applying software DEFORM 3-D in this study to investigate the effects of the semi-angle, the exit geometry of the die, the extrusion ratio and the friction factor; etc, to the extrusion load and to the distribution of stress and strain. An optimal geometry of an extrusion die having minimum stress can be obtained during the extrusion process.
目 錄
摘要 i
英文摘要 ii
致謝 iii
目錄 iv
圖目錄 vi
符號說明 ix

第一章 緒論 1
1.1 前言 1
1.2 擠製加工的分類 1
1.3 雙向擠製特性 4
1.4 塑性加工解析法 4
第二章 研究動機 7
2.1 研究動機 7
2.2 文獻回顧 8
第三章 有限元素法與模擬軟體之簡介 11
3.1 有限元素法概論 11
3.1.1 非線性有限元素法之基礎 12
3.1.2 剛塑性有限元素法之基礎 13
3.1.3 固體力學分析 16
3.1.4 自由度與形狀函數矩陣 20
3.1.5 元素平衡方程式 24
3.2 DEFORM模擬軟體簡介 26
3.3 DEFORM使用之步驟 31
第四章 模擬分析與結果 33
4.1 摩擦因子 33
4.1.1 CAD模型之建立與網格佈建 33
4.1.2 雙向擠製之分析結果 37
4.2 材料特性 38
4.2.1 實驗步驟 39
4.2.2 實驗設備 40
4.2.3 實驗結果 41
4.3 不同模具出口形狀擠製之分析與結果 44
4.3.1 CAD模型之建立與網格佈建 44
4.3.2 模具出口形狀擠製之分析 47
第五章 結果與討論 61
參考文獻 62
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