請用此 Handle URI 來引用此文件：
http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/28200完整後設資料紀錄
| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 陳復國 | |
| dc.contributor.author | Yuh-Chu Su | en |
| dc.contributor.author | 蘇昱竹 | zh_TW |
| dc.date.accessioned | 2021-06-13T00:02:35Z | - |
| dc.date.available | 2009-08-02 | |
| dc.date.copyright | 2007-08-02 | |
| dc.date.issued | 2007 | |
| dc.date.submitted | 2007-07-30 | |
| dc.identifier.citation | [1] M. Samuel, Experimental and numerical prediction of springback and side wall curl in U-bendings of anisotropic sheet metals, Journal of Materials Processing Technology, 105(3): pp.382-393, 2000.
[2] W. Gan and R.H. Wagoner, Die design method for sheet springback, International Journal of Mechanical Sciences, 46(7): pp.1097-1113, 2004. [3] S.R. Zhang, study on the factors affecting springback and application of data mining in springback analysis, http://www.paper.edu.cn . [4] C.Q. Du, Springback Control With Variable Binder Force — Experiments And FEA Simulation,AIP Conference Proceedings, 712, pp.970-976, 2004. [5] J.T. Gau and G.L. Kinzel, A new model for springback prediction in which the Bauschinger effect is considered, International Journal of Mechanical Sciences, 43(8): pp.1813-1832, 2001. [6] Lingbeek, The development of a finite elements based springback compensation tool for sheet metal products, Journal of Materials Processing Technology, 169, pp.115-125, 2005. [7] O. Onipede Jr., Springback in High Strength Anisotropic Steel, 6th International LS-DYNA Users Conference Simulation 2000, 2000. [8] T.Yoshida, Shape Control Techniques for High Strength Steel in Sheet Metal Forming, Nippon Steel Technical Report, No.88, 2003. [9] N. Asnafi, On springback of double-curved autobody panels, International Journal of Mechanical Sciences, 43(1): pp.5-37, 2001. [10] Q.V. Bui, L. Papeleux, and J.P. Ponthot, Numerical simulation of springback using enhanced assumed strain elements. Journal of Materials Processing Technology, 153-154: pp.314-318, 2004. [11] W.D. Carden, et al., Measurement of springback. International Journal of Mechanical Sciences, 44(1): pp.79-101, 2002. [12] J.R. Cho, et al., Finite element investigation on spring-back characteristics in sheet metal U-bending process, Journal of Materials Processing Technology, 141(1): pp.109-116, 2003. [13] R.M. Cleveland and A.K. Ghosh, Inelastic effects on springback in metals, International Journal of Plasticity, 18(5-6): pp.769-785, 2002. [14] A. Forcellese, et al., Computer aided engineering of the sheet bending process, Journal of Materials Processing Technology, 60(1-4): pp.225-232, 1996. [15] L. Geng and R.H. Wagoner, Role of plastic anisotropy and its evolution on springback, International Journal of Mechanical Sciences, 44(1): pp.123-148, 2002. [16] C. Gomes, O. Onipede, and M. Lovell, Investigation of springback in high strength anisotropic steels, Journal of Materials Processing Technology, 159(1): pp.91-98, 2005. [17] Y.M. Huang and D.K. Leu, An elasto-plastic finite element analysis of sheet metal U-bending process, Journal of Materials Processing Technology, 48(1-4): pp.151-157, 1995 [18] D.I. Hyun, et al., Estimation of hole flangeability for high strength steel plates, Journal of Materials Processing Technology, 130-131: pp.9-13, 2002. [19] J.S. Shu and C.H Hung, Finite element analysis and optimization of springback reduction: the “double-bend” technique, International Journal of Machine Tools and Manufacture, 36(4): pp.423-434, 1996. [20] A.P. Karafillis and M.C. Boyce, Tooling and binder design for sheet metal forming processes compensating springback error, International Journal of Machine Tools and Manufacture, 36(4): pp.503-526, 1996. [21] K.P. Li, W.P. Carden, and R.H. Wagoner, Simulation of springback, International Journal of Mechanical Sciences, 44(1): pp.103-122, 2002. [22] H. Livatyali and T. Altan, Prediction and elimination of springback in straight flanging using computer aided design methods:Part 1. Experimental investigations, Journal of Materials Processing Technology, 117(1-2): pp.262-268, 2001. [23] H. Livatyali, H.C. Wu, and T. Altan, Prediction and elimination of springback in straight flanging using computer-aided design methods:Part 2: FEM predictions and tool design, Journal of Materials Processing Technology, 120(1-3): pp.348-354, 2002. [24] Y.H. Moon, et al., Effect of tool temperature on the reduction of the springback of aluminum sheets, Journal of Materials Processing Technology, 132(1-3): pp.365-368, 2003. [25] H.B. Mullan, Improved prediction of springback on final formed components, Journal of Materials Processing Technology, 153-154: pp.464-471, 2004. [26] N. Narasimhan and M. Lovell, Predicting springback in sheet metal forming: an explicit to implicit sequential solution procedure, Finite Elements in Analysis and Design, 33(1): pp.29-42, 1999. [27] L. Papeleux and J.P. Ponthot, Finite element simulation of springback in sheet metal forming, Journal of Materials Processing Technology, 125-126: pp.785-791, 2002. [281 L.C. Sousa, C.F. Castro, and C.A.C. AntOnio, Optimal design of V and U bending processes using genetic algorithms, Journal of Materials Processing Tech., 172(1): pp. 35—41, 2006. [291 A. Tekaslan, U. AAeker, and A. AAzdemir, Determining springback amount of steel sheet metal has 0. 5 mm thickness in bending dies, Materials and Design, 27(3): pp.251—258, 2006. [301 J. F. Wang, et al., Creep and anelasticity in the springback of aluminum, International Journal of Plasticity, 20(12): pp.2209—2232, 2004. [311 W.L. Xu, et al., Sensitive factors in springback simulation for sheet metal forming, Journal of Materials Processing Technology, 151(1-3): pp.217-222, 2004. [321 P. Xue, T. X. Yu, and E. Chu, Theoretical prediction of the springback of metal sheets after a double-curvature forming operation, Journal of Materials Processing Technology, 89—90: pp.65—71, 1999. [33 P. Xue, T.X. Yu, and E. Chu, An energy approach for predicting springback of metal sheets after double-curvature forming, Part I: axisymmetric stamping, International Journal of Mechanical Sciences, 43(8): pp. 1893—1914, 2001. [34 P. Xue, T.X. Yu, and E. Chu, An energy approach for predicting springback of metal sheets after double-curvature forming, Part II: Unequal double-curvature forming, International Journal of Mechanical Sciences, 43(8): pp. 1915-1924, 2001. [35 Y.M. Huang and D.K. Leu , An elasto-plastic finite-element simulation of successive UO-bending processes of sheet metal, Journal of Materials Processing Technology, 53(3-4): pp.643-661, 1995. [361 L.C. Zhang, and Z. Lin, An analytical solution to springback of sheet metals stamped by a rigid punch and an elastic die, Journal of Materials Processing Technology, 63(1-3): pp.49-54, 1997. [371 Advanced High Strength Steel Guidelines, http: //www. woridautosteel. org/ [381 C. D. Joseph, Experimental Measurement and Finite Element Simulation of Springback in Stamping Aluminum Alloy Sheets for Auto-body Panel Application, Master Thesis of Department of Mechanical Engineering, Mississippi State University, 2003. [391 Formability Characterization of a New Generation of High-Strength steel for automotive application, http://www.autosteel.org [401 Formability characterization of advanced high strength steels, http://www.autosteel.org [411 High Strength Steel Stamping Design Manual, http://www. a-sp. org [421 C. Arwidson, Numerical simulation of sheet metal forming for high strength steels, Licentiate Thesis of Department of Applied Physics and Mechanical Engineering, Luleà University of Technology, 2005. | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/28200 | - |
| dc.description.abstract | 為了減少溫室氣體的排放，並提昇燃油效率，汽車減重為各大汽車廠努力的目標，而為達到此目標，各大車廠紛紛採用高強度鋼板來取代傳統鋼板，因為高強度鋼板相較於傳統鋼板具有高強度之特性，能夠藉由減少汽車板金件板厚來達到減重的目的。然而在沖壓成形中，回彈為無法避免的問題，且隨著使用之材料的強度愈高，回彈現象愈嚴重，故本研究採用V型彎曲、U型彎曲以及U形帽狀（U-hat）成形實驗來了解回彈之特性，並選用270級軟鋼、590R、590Y高強度鋼板來了解高強度鋼板與傳統鋼板在回彈現象的差異性。在製程參數上探討沖頭圓角、母模圓角、壓料力以及厚度對於回彈之影響性。並利用有限元素法軟體模擬高強度鋼板回彈之行為，驗證CAE模擬回彈之正確性。另外，收集、歸納與整理改善回彈之方法。最後，進行業界實際板金件之回彈模擬，探討相關製程之回彈行為。 | zh_TW |
| dc.description.abstract | In order to mitigate the greenhouse effect and promotion of fuel-efficient, how to reduce the weight of vehicle has became the new goal for the automotive manufactures. For this reason, automotive manufactures replace conventional steel sheets with high strength steel sheets to reduce the thickness and weight of sheets used in vehicle. Springback is the severe problem in the sheet metal forming process, and is getting serious with adopting higher strength materials. In this study, we proceeded V-bending, U-bending and U-hat forming experiment to realize the characteristics of springback, and compared the experiment results of three specimens, 270 level mild steel and 590R, 590Y high strength steel, to understand the differences of springback between high strength steel and conventional steel. Furthermore, we discussed the influences of the four parameters, punch radius, die radius, blank holder force, and thickness, on the springback experiments. Analyzing springback behavior of high strength steel by using the software of the finite element method to validating simulation. Besides, the methods of diminishing springback were collected. Finally, springback simulations of industrial sheet metal case were conducted to discussing springback behavior of correlative process. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-13T00:02:35Z (GMT). No. of bitstreams: 1 ntu-96-R94522520-1.pdf: 2382799 bytes, checksum: 2fdcdb43dfff6ef5a7dd1b774b0ebbdf (MD5) Previous issue date: 2007 | en |
| dc.description.tableofcontents | 目錄口試委員會審定書i
誌謝 ii 中文摘要 iii 英文摘要 iv 目錄 v 圖目錄 vii 表目錄 xii 第一章 緒論 1.1 研究動機與目的 1 1.2 文獻回顧 2 1.3 研究方法與步驟 4 1.4 論文總覽 7 第二章 DP590鋼板沖壓成形回彈特性之實驗分析 2.1 基本回彈類型之介紹 9 2.2 實驗板材之材料性質 10 2.3 V型彎曲實驗 12 2.4 U型彎曲實驗 16 2.5 U形帽狀（U-hat）成形實驗 19 2.6 結論 24 第三章 CAE模擬分析模式之建立 3.1 數值參數之比較測試 26 3.2 CAE模擬結果與實驗對照驗證 33 第四章 回彈變形機制之研究 4.1 V型彎曲回彈機制之研究 41 4.2 U型彎曲回彈機制之研究 46 4.3 U形帽狀回彈機制之研究 48 第五章 改善回彈現象方法之收集、整理與歸納 5.1 前言 52 5.2 增加結構剛度之回彈改善法 52 5.3 減少不均勻應力狀態之回彈改善法 53 第六章 業界實際案例探討 6.1 前言 59 6.2 汽車側邊大樑 60 6.3 前保險桿 67 第七章 結論 7.1 結論 72 參考文獻 74 | |
| dc.language.iso | zh-TW | |
| dc.title | 先進高強度鋼板沖壓成形回彈現象之研究 | zh_TW |
| dc.title | A Study of Springback in the Sheet Metal Forming of Advanced High Strength Steel | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 95-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 向四海,黃永茂,洪景華 | |
| dc.subject.keyword | 高強度鋼板,沖壓成形,回彈現象,彎曲成形,製程參數,有限元素法,CAE, | zh_TW |
| dc.subject.keyword | high strength steel,stamping forming,springback,bending process,process parameter,finite element method,CAE, | en |
| dc.relation.page | 81 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2007-07-31 | |
| dc.contributor.author-college | 工學院 | zh_TW |
| dc.contributor.author-dept | 機械工程學研究所 | zh_TW |
| 顯示於系所單位： | 機械工程學系 | |
文件中的檔案：
| 檔案 | 大小 | 格式 | |
|---|---|---|---|
| ntu-96-1.pdf 目前未授權公開取用 | 2.33 MB | Adobe PDF |
系統中的文件，除了特別指名其著作權條款之外，均受到著作權保護，並且保留所有的權利。