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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 陳復國(Fuh-Kuo Chen) | |
dc.contributor.author | Shih-Ting Huang | en |
dc.contributor.author | 黃士庭 | zh_TW |
dc.date.accessioned | 2021-06-15T04:48:04Z | - |
dc.date.available | 2013-08-06 | |
dc.date.copyright | 2010-08-06 | |
dc.date.issued | 2010 | |
dc.date.submitted | 2010-08-04 | |
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Evangelista, “An analysis of hot formability of the 6061+20%Al2O3 composite by means of different stability criteria”, Material Science and Engineering, A327, 2002, pp.144-154. [9].. L. M. Marzoli, A. V. Strombeck, J. F. D. Santos, C. Gambaro and L. M. Volpone, “Friction stir welding of an AA6061/Al2O3/20p reinforced alloy”, Composites Science and Technology, 66, 2006, pp.363-371. [10].R. A. Prado, L. E. Murr , K. F. Soto and J. C. McClure, “Self-optimization in tool wear for friction-stir welding of Al 6061_20% Al2O3 MMC”, Materials Science and Engineering, A349, 2003, pp.156-165. [11].B. G. Park, A. G. Crosky and A. K. Hellier, “Fracture toughness of microsphere Al2O3–Al particulate metal matrix composites”, Composites: Part B, 39, 2008, pp. 1270-1279. [12].L. J. Chen, C. Y. Ma, G. M. Stoica, P. K. Liaw, C. Xu and T. G. 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Fei, “Interfacial reaction and tensile properties of 6061Al matrix composite reinforced with copper-coated Al18B4O33 whiskers”, Materials Science and Engineering, A479, 2008, pp.261-268. [17].B. H. Yan, C. C. Wang, H. M. Chow and Y. C. Lin, “Feasibility study of rotary electrical discharge machining with ball burnishing for A6061+20%Al2O3 composite”, International Journal of Machine Tools & Manufacture, 40, 2000, pp. 1403-1421. [18].A. M. Klaska, T. Beck, A. Wanner and D. Lohe, “Residual stress and damage development in the aluminium alloy EN AW-6061 particle reinforced with Al2O3 under thermal fatigue loading”, Materials Science and Engineering, A501, 2009, pp.6-15. [19].C. G. Kang, N. H. Kim and B. M. Kim, “The effect of die shape on the hot extrudability and mechanical properties of A6061+Al2O3 composites”, Journal of Materials Processing Technology, 100, 2000, pp.53-62. [20].W. C. Chen, C. H. J. Davies, I. V. Samarasekera, J. K. Brimacombe and E. B. Hawbolt, “Mathematical modeling of the extrusion of A6061+20%Al2O3 Composites”, Metallurgical and Materials Transactions A, 1996, pp.4095-4111. [21].W. P. Dong and J. Chen, “3D FEA simulation of 4A11 piston skirt isothermal forging process”, Transactions of Nonferrous Metals Society of China, 8, 2008, pp.1196 -1200. [22].S. J. Luo, Y. S. Cheng and P. X. Wang, “Pseudo-semi-solid thixoforging of cup shell with A1/A1203”, Transactions of Nonferrous Metals Society of China, 16, 2006, pp.772-775. [23].詹建峰, “電腦輔助工程分析於冷鍛模具設計之應用”, 國立台灣大學機械工程研究所碩士論文, 1999年6月. [24].洪俊銘, “非對稱鋁合金型材擠製之有限元素分析”, 國立台灣大學機械工程研究所碩士論文, 2007年7月. [25].林家瑋, “熱鍛模具設計之有限元素法分析”, 國立台灣大學機械工程研究所碩士論文, 2005年6月. [26].K. Yoshida, I. Kuboki and S. Norasethasopon, “Surface quality improvement of multistage forged microparts for wristwatches”, Journal of Materials Processing Technology, 143-144, 2003, pp. 362-366. [27].P. B. Hussian, J. S. Cheon, D. Y. Kwak, S. Y. Kim and Y. T. Im, “Simulation of clutch-hub forging process using camp form”, Journal of Materials Processing Technology, 123, 2002, pp.120-132. [28].S. Ho and A. Saigal, “Three-dimensional modeling of thermal residual stresses and mechanical behavior of cast SiC/Al particulate composites”, Acta Metallurgical and Materials, 42, 1994, pp.3253-3262. [29].W. B. Castello and F. G. Flores, “A triangular finite element with local remeshing for the large strain analysis of axisymmetric solids”, Computer Methods in Applied Mechanics and Engineering, 198, 2008, pp.332-343. [30].R. Ponalagusamy and R. Narayanasamy, “Finite difference method for analysis of open-die forging of sintered cylindrical billets”, Materials and Design, 29, 2008, pp.1886-1892. [31].Y. L. Huang, H. Cshih, H. C. Huang, J. Daugherty, S. Wu, S. Ramanathan, C. Chang and F. Mansfeld, “Evaluation of the corrosion resistance of anodized aluminum 6061 using electrochemical impedance spectroscopy(EIS)”, Contents lists available at Science Direct Corrosion Science, 2008. [32].http://mmc-assess.tuwien.ac.at/data/prm/duralcan/aa6061_al2o3.htm. [33].http://info.job36.com/Info/car/qctt/2006032030822.shtml. | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/45883 | - |
dc.description.abstract | 近年來,鍛品輕量化已成為產學研探討的主要課題之一,雖然鋁基複合材料非常適合製作輕量化且具高強度之產品,然相關產品的成形方法又是鋁基複合材料發展之關鍵因素,因此本研究針對鋁基金屬複合材料A6061/Al2O3之鍛造成形進行研究,並以活塞造型做為研究載具,且使用有限元素法模擬分析來探討鍛造製程參數對成形的影響,同時針對鋁基金屬複合材料A6061/Al2O3之機械性質作深入探討。
在研究方法上,首先選擇具有代表性之活塞載具,利用電腦輔助工程分析(Computer-Aided Engineering,CAE)模擬成形過程中材料之流動方式、特徵造型及鍛造負荷等為指標,探討不同Al2O3含量下之鍛造溫度、鍛造速度與不同潤滑劑等製程參數對材料流動的影響,並與常用於活塞材料之A2618鋁合金比較兩者成形差異性與鍛後材料硬度。本研究同時探討Al2O3於鍛造製程中之顆粒流動情形以及整體材料之流動模式,然後利用CAE分析出解決問題方法。 本研究運用DEFORM-3D有限元素分析軟體作為模擬分析工具,且經由圓柱壓縮實驗取得材料更完整之應力-應變曲線,再以活塞造型作為研究載具,探討鋁基金屬複合材料A6061/Al2O3之成形性。由模擬分析發現鋁基複合材料A6061/Al2O3於活塞鍛造成形過程中,容易發生未填滿之缺陷,而探討產生缺陷的主要原因為材料於成形中,由側向溢出導致模穴未填滿的現象了解缺陷原因後,藉由模具上下模設計溢料槽,抑制材料向外流動,最後經由溢料槽之設計,模穴之未填滿獲得改善。為了驗證分析的正確性,本研究從事實際之活塞鍛造成形實驗,經由實驗驗證材料之流動情形、成形力及型材外形,實驗結果證明了有限元素分析軟體之準確性且歸納出一套設計準則。 | zh_TW |
dc.description.abstract | Due to its high specific strength and light weight, aluminum-based metal matrix composite (AL/MMC) attracts much attention from the industry for manufacturing the high strength structural components. Thus the forming method of relevant products is the key technology in the development of AL/MMC. Among the manufacturing processes for AL/MMC products, the forging process has much potential because of its competitive productivity and performance in the effective production of components with complex shapes. In the present study, the forging formability of an A6061/Al2O3 MMC piston was examined. The commercial code DEFORM-3D was employed to perform the forging simulations and the material properties of A6061/Al2O3 at elevated temperatures obtained from the compression tests were used as the input data for the finite element simulations. The influence of forging process parameters on the formation of A6061/Al2O3 piston was studied first. This study took material, characteristics modeling, and forging load of material during formation as indicators, investigating the influence of process parameters including forging temperature, forging speed and different lubricants on the material flow when different contents of Al2O3 were adopted.
This study also discusses the flow status of Al2O3 particles during forging process and the flow mode of the whole blank material. The simulation results indicate that insufficient filling would occur during the forging of an A6061/Al2O3 MMC piston. The die cavity was not completely filled due to lateral overflow of material in the forging process. In order to cope with the insufficient filling problem, this study designed one spew groove between punch and bottom die, preventing the material overflow. The actual forging process was implemented and the features of the forged part were compared with the finite element simulation results. The good agreement between the production part and the finite element simulation results in material flow, forging force and appearance of part profiles confirms the validity of the finite element analysis. The sound production part also indicates that a complex shaped component made of A6061/Al2O3 MMC could be formed by the forging process with proper die design at elevated forming temperature. | en |
dc.description.provenance | Made available in DSpace on 2021-06-15T04:48:04Z (GMT). No. of bitstreams: 1 ntu-99-R97522529-1.pdf: 5758598 bytes, checksum: 8966cbf9d470c1e0498555e24eadaacc (MD5) Previous issue date: 2010 | en |
dc.description.tableofcontents | 目錄 i
圖目錄 iv 表目錄 vii 第一章 緒論 1 1.1 前言 1 1.2 研究背景與目的 3 1.3 文獻回顧 4 1.4 研究方法及步驟 9 1.4.1 鋁基金屬複合材料A6061/Al2O3之材料性質比較 11 1.4.2 鋁基金屬複合材料A6061/Al2O3之圓柱壓縮實驗 11 1.4.3 選擇活塞造型載具進行鍛造成形之研究 12 1.4.4 建立材料於鍛造成形之有限元素法電腦模擬分析模式 13 1.4.5 探討鋁基金屬複合材料之活塞鍛造變形機制及模具工法設計 13 1.4.6 探討各製程參數對鍛造成形之影響,並找出最佳參數 14 1.4.7 鍛造製程之模具受力分析模式建立 15 1.4.8 開模驗證CAE研究成果之準確性 15 1.4.9 建立一套鋁基金屬複合材料之鍛造模具工法設計準則 16 1.5 論文總覽 16 第二章 鋁基金屬複合材料之機械性質 18 2.1 鋁基金屬複合材料A6061/Al2O3 18 2.1.1 鋁基金屬複合材料A6061/Al2O3之發展現況 19 2.1.2 材料性質比較 21 2.1.3 鋁基金屬複合材料A6061/Al2O3公式探討其機械性質 23 2.1.4 材料金相及硬度比較 26 2.2 圓柱壓縮實驗 30 2.2.1 實驗規劃 31 2.2.2 試片準備 34 2.2.3 圓柱壓縮實驗結果 37 2.2.4 鋁合金A6061圓柱壓縮試驗探討 43 第三章 鋁基金屬複合材料活塞鍛造成形之製程研究 46 3.1 市面上鋁基金屬複合材料可應用載具歸納及介紹 47 3.1.1 驅動軸 47 3.1.2 連桿 48 3.1.3 活塞 49 3.1.4 其他汽機車零件 53 3.2 成形製程之探討 54 3.2.1 成形製程之選擇 55 3.2.2 開模鍛造及閉模鍛造之比較 56 3.2.3 結論 58 3.3 有限元素法軟體DEFORM簡介 59 3.4 活塞鍛造成形困難點及特徵處之研究 62 3.5 活塞鍛造模擬模型之建立 63 3.6 活塞鍛造成形之製程 65 3.7 鋁基金屬複合材料A6061/Al2O3鍛造成形之初步模擬分析 67 3.7.1 模擬材料之選擇 67 3.7.2 活塞鍛造成形初步模擬 70 3.7.3 胚料直徑對成形性之影響 72 3.7.4 材料流動方式對特徵處成形之影響 73 3.7.5 模具應力之分析 75 3.8 模具修改之分析 78 3.9 有限元素模擬分析結果 81 3.10 實驗驗證有限元素之準確性 84 3.10.1 產品成形外型驗證 85 第四章 較佳化設計之活塞鍛造成形製程參數分析 90 4.1 活塞鍛造模擬模型之建立 91 4.2 活塞鍛造製程參數之分析 92 4.2.1 鋁基金屬複合材料不同Al2O3含量模擬之分析 93 4.2.2 定剪摩擦因子對鍛造製程之影響 97 4.2.3 速度對鍛造製程之影響 98 4.2.4 溫度對鍛造製程之影響 99 4.3 鋁基金屬複合材料與A6061及A2618之模擬比較 101 4.4 簡易材料顆粒流動模擬 106 4.5 結果討論 110 第五章 有限元素模擬實驗驗證 111 5.1 實驗設備介紹 111 5.1.1 模具材料之選擇 112 5.1.2 胚料加熱方式 113 5.1.3 操作流程 115 5.2 有限元素分析之驗証 117 5.2.1 產品成形外型驗證 117 5.2.2 材料流動模式驗證 119 5.2.3 機台負荷及模具應力之驗證 120 5.3 成品各特徵處之硬度值及金相顯微組織 121 5.4 鋁基金屬複合材料之應力-應變曲線落差探討 124 第六章 結論 126 參考文獻 129 | |
dc.language.iso | zh-TW | |
dc.title | 鋁基金屬複合材料活塞鍛造成形特性分析與模具設計 | zh_TW |
dc.title | Formability Analysis and Die Design for Forging an Aluminum-Based Metal Matrix Piston | en |
dc.type | Thesis | |
dc.date.schoolyear | 98-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 梁越昇(Yue-Sheng Liang),童 山(Shan-Tong),楊宏智(Hong-Tsu Young) | |
dc.subject.keyword | 鋁基金屬複合材料,A6061/Al2O3,活塞鍛造成形,高溫性質,DEFORM軟體, | zh_TW |
dc.subject.keyword | aluminum-based metal matrix composites,A6061/Al2O3,piston,finite element method, | en |
dc.relation.page | 131 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2010-08-04 | |
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 |
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