跳到主要內容

臺灣博碩士論文加值系統

(18.97.14.86) 您好!臺灣時間:2025/02/12 12:27
字體大小: 字級放大   字級縮小   預設字形  
回查詢結果 :::

詳目顯示

: 
twitterline
研究生:陳彥麒
研究生(外文):Yen-Chi Chen
論文名稱:等通道彎角擠製之有限元素法及反應曲面法分析
指導教授:葉維磬
指導教授(外文):Wei-Ching Yeh
學位類別:碩士
校院名稱:國立中央大學
系所名稱:機械工程學系
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:2017
畢業學年度:105
語文別:中文
論文頁數:137
中文關鍵詞:等通道彎角擠製有限元素分析Box-Behnken
相關次數:
  • 被引用被引用:0
  • 點閱點閱:326
  • 評分評分:
  • 下載下載:60
  • 收藏至我的研究室書目清單書目收藏:0
本文透過有限元素軟體Deform-3D進行等通道彎角擠製(ECAE)的模擬分析,探討影響試片變形程度以及變形均勻性的參數及其效應。本文之設計參數包括試片的溫度T、試片與通道間的摩擦因子m、模具通道角度Ø、通道外圓弧角度Ψ以及內側圓弧半徑r。實驗設計採用適合建構二階反應曲面之Box-Behnken 5因子3水準的設計,建立共41組模擬,利用統計軟體Minitab依Deform-3D有限元素軟體分析的結果進行迴歸分析,以建立等通道彎角擠製之平均等效應變及應變均勻度的預測模型,進而探討各因子對平均等效應變及應變均勻度的影響以及最佳的設計參數之水準。本文之模擬結果與實驗結果先行驗證,結果顯示有限元素軟體具有一定的可靠性,再利用這些結果建立平均等效應變及應變均勻度預測方程式,與有限元素模擬的結果進行驗證,其結果顯示預測模型具有相當的準確度。
An ideal FE model of equal channel angular extrusion is developed under the Deform-3D software and discuss effect of deform and effective strain uniformity are in this study.
The factors in the design include temperature , friction factor , channel angle , outer corner angle and inner corner radius. The experiment adopts 41 groups of analogs with the Box-Behnken design. Use the Minitab software to do the regression analysis and develop the predicted equations. By doing so, it’s excepted using the FEM model and surface response methodology to find the optimum design of the average effective strain and effective strain uniformity.
The simulation results of this paper and the experimental results are verified first. The results show that the finite element software has certain reliability, and average effective strain and strain uniformity prediction equation established with the results of finite element simulations to verify the results show the prediction model with considerable accuracy.
摘要 i
Abstract ii
致謝 iii
圖目錄 viii
表目錄 xiii
符號說明 xv
第一章 緒論 1
1-1前言 1
1-2文獻回顧 2
1-3研究動機 8
第二章 基本理論 10
2-1 等通道彎角擠製(ECAE)製程介紹 10
2-2 有限元素分析基本概念 10
2-3 ECAE模具參數 15
2-4 ECAE有限元素分析範例 17
第三章 有限元素法與實驗設計法 18
3-1 有限元素模擬 18
3-1-1 有限元素分析基本理論 18
3-1-2 有限元素法之力學模式及數值分析 19
3-1-3 基本假設 20
3-2 Deform-3D有限元素軟體[19] 21
3-2-1軟體介紹 21
3-2-2 Deform-3D的使用流程 21
3-3模擬參數設定 23
3-3-1 等通道彎角擠製(ECAE)材料性質 23
3-3-2 5052鋁合金鍛粗模擬驗證 24
3-3-3 有限元素網格建構與模擬收斂性探討 27
3-4 實驗設計法[22] 30
3-4-1 反應曲面法 (Response Surface Methodology,RSM) 30
3-4-2迴歸分析基本理論 32
3-4-3模擬實驗因子與水準 35
第四章 結果與討論 38
4-1 有限元素模擬驗證 38
4-1-1 ECAE成形力驗證 40
4-1-2材料等效應變與硬度分佈驗證 40
4-2 等通道彎角擠製(ECAE)模擬結果 45
4-2-1 等通道彎角擠製(ECAE)之平均等效應變 45
4-2-2 等通道彎角擠製(ECAE)之應變均勻度 46
4-2-3 等通道彎角擠製(ECAE)取點位置探討 46
4-3 模型建構 66
4-3-1 等通道彎角擠製(ECAE)回歸模型 69
4-3-2 模型檢驗 81
4-4 平均等效應變與應變均勻度最佳化 83
4-4-1 應變均勻度最佳化 83
4-4-2 平均等效應變最佳化 85
4-4-3 ECAE之最佳化分析 88
4-5 品質因子對於品質特性之效應 89
4-5-1 因子對平均等效應變之效應 90
4-5-2 因子對應變均勻度之效應 96
第五章 結論與建議 102
5-1 結論 102
5-2 建議 104
參考文獻 105
附錄A 109
附錄B 115
附錄C 117
[1] V. M. Segal, "Materials processing by simple shear," Materials
Science and Engineering A197, pp. 157-164, 1995.

[2] S. M. Fatemi-Varzaneh and A. Zarei-Hanzaki, "Accumulative back extrusion (ABE) processing as a novel bulk deformation method," Materials Science and Engineering A 504, pp. 104-106, 2009.

[3] A. P. Zhilyaev and T. G. Langdon, "Using high-pressure torsion for metal processing: Fundamentals andapplications, " Progress in Materials Science Volume 53, Issue 6, p. 893–979, 2008.

[4] M. Furukawa, Y. Iwahashi, Z. Horita, M. Nemoto and T. G. Langdon, "The shearing characteristics associated with equal-channel angular pressing," Materials Science and Engineering: A, 257(2), pp. 328-332, 1998.

[5] M. Furukawa and Z. Horita, "Factors influencing the shearing patterns in equal-channel angular pressing," Materials Science and Engineering: A, 332(1), pp. 97-109, 2002.

[6] A. Rosochowski and L. Olejnik, "Numerical and physical modelling of plastic deformation in 2-turn equal channel angular extrusion", Journal of Material Technology, Vol. 125-126, pp. 309-316, 2002.

[7] S. Dumoulin, H. J. Roven, J. C. Werenskiold, H. S. Valberg, "Finite element modeling of equal channel angular pressing: Effect of material properties, friction and die geometry", Materials Science and Engineering A, Vol. 410-411, pp. 248-251, 2005.

[8] W. J. Kim, J. C. Namgung, J. K. Kim, "Analysis of strain uniformity during multi-pressing in equal channel angular extrusion", Scripta Materialia, Vol. 53, pp. 293-298, 2005.

[9] S. Xu, G. Zhao, X. Ma, G. Ren, "Finite element analysis and optimization of equal channel angular pressing for producing ultra-fine grained materials", Journal of Material Technology, Vol. 184, pp. 209-216, 2007.

[10] Nagasekhar, A.V., Yip, T.H., Seow, H.P., "Deformation behavior and strain homogeneity in equal channel angular extrusion/pressing, " Journal of Materials Processing Technology, Vol. 192–193, pp.449-452, 2007.

[11] El-Danaf, E. A., Soliman, M. S., Almajid, A. A., & El-Rayes, M. M.. "Enhancement of mechanical properties and grain size refinement of commercial purity aluminum 1050 processed by ECAP. " Materials Science and Engineering: A, 458(1), 226-234.2007

[12] El-Danaf, E. A. . "Mechanical properties and microstructure evolution of 1050 aluminum severely deformed by ECAP to 16 passes. "Materials Science and Engineering: A, 487(1), 189-200. 2008

[13] V. Patil, U. Chakkingal and T. S. Prasanna Kumar, "Study of channel angle influence on material flow and strain inhomogeneity in equal channel angular pressing using 3D finite element simulation," Journal of Materials Processing Technology, Vol. 209, pp. 89-95, 2009.

[14] M. W. Fu, Y. W. Tham, H. H. Hng, K. B. Lim, "The grain refinement of Al-6061 via ECAE processing: Deformation behavior, microstructure and property", Material Science and Engineering A, Vol. 526, pp. 84-92, 2009.

[15] F. Djavanroodi and M. Ebrahimi, "Effect of die channel angle, friction and back pressure in the equal channel angular pressing using 3D finite element simulation", Materials Science and Engineering: A, Vol. 527, pp. 1230-1235, 2010.

[16] GuangYang , Zhou Li , Yuan Yuan and Qian Lei , "Microstructure, mechanical properties and electrical conductivity of Cu–0.3Mg–0.05Ce alloy processed by equal channel angular pressing and subsequent annealing"Journal of Alloys and Compounds,Vol. 640,pp.347-354,2015.

[17] Basavaraj V. Patil, Uday Chakkingal and T.S. Prasanna Kumar, "Effect of geometric parameters on strain, strain inhomogeneity and peak pressure in equal channel angular pressing – A study based on 3D finite element analysis",Journal of Manufacturing Processes, Vol.17,pp.88-97,2015

[18] 廖佑懷,"超音波振動輔助多道次等通道彎角擠製之研究"國立中央大學,碩士論文,2012。

[19] 胡建軍、李小平,"DEFORM-3D 塑性成形CAE應用教程",北京大學出版社,2011年。

[20] Yongjian Wang , Jian Peng , Liping Zhong , Fusheng Pan , "Modeling and application of constitutive model considering the compensation of strain during hot deformation" Journal of Alloys and Compounds , Vol.681,pp.455-470,2016.

[21] V. Patil Basavaraj , U. Chakkingal and T. S. Prasanna Kumar, "Study of channel angle influence on material flow and strain inhomogeneity in equal channel angular pressing using 3D finite element simulation," Journal of materials processing technology, Vol. 209, no. 1, pp. 89-95, 2009.

[22] 葉怡成,2001 年 6 月,"製程與產品最佳化",五南出版社。

[23] 蔣安國、蔣安人、丁敬哲,鍾健平,「以模擬技術和統計方法建構專案排程之可靠度」,管理與決策學術研討會特刊,南華大學,119~130頁,2005。
[24] 張家溢,"1070鋁合金超音波振動輔助等通道彎角擠製之研究"國立中央大學,碩士論文,2015。

[25] Fazil O. Sonmez and Ahmet Demir, "Analytical relations between hardness and strain for cold formed parts, "Journal of Materials Processing Technology, Volume 186, Issues 1–3, Pages 163-173, May 2007.

[26] 蘇耿民,"以有限元素法及反應曲面法分析旋轉鍛造傘形齒輪之加工問題",國立中央大學,碩士論文,2015。

[27] 張劭賓,"加工路徑對傘形齒輪旋轉鍛造製程之有限元素法與反應曲面法分析",國立中央大學,碩士論文,2016。

[28] 陳昱樺,"超音波振動輔助等通道彎角擠製之初步研究",國立中央大學,碩士論文,2013。

[29] 鍾泰華,"以反應曲面法進行U型引伸彎曲之最佳化分析 ",國立中央大學,碩士論文,2016。
連結至畢業學校之論文網頁點我開啟連結
註: 此連結為研究生畢業學校所提供,不一定有電子全文可供下載,若連結有誤,請點選上方之〝勘誤回報〞功能,我們會盡快修正,謝謝!
QRCODE
 
 
 
 
 
                                                                                                                                                                                                                                                                                                                                                                                                               
第一頁 上一頁 下一頁 最後一頁 top
無相關期刊