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系統識別號 U0026-1608201616131000
論文名稱(中文) 積層製造加工中熔滴鋪展與固化行為之模擬
論文名稱(英文) Simulations of Droplet Behavior of Spreading and Solidification in Additive Manufacturing
校院名稱 成功大學
系所名稱(中) 工程科學系
系所名稱(英) Department of Engineering Science
學年度 104
學期 2
出版年 105
研究生(中文) 林子翔
研究生(英文) Tzu-Hsiang Lin
學號 n96031449
學位類別 碩士
語文別 中文
論文頁數 55頁
口試委員 指導教授-黃吉川
口試委員-楊瑞珍
口試委員-廖德祿
口試委員-林振森
中文關鍵字 3D列印  熔滴沉積  COMSOL  平行運算 
英文關鍵字 3D printing  Droplet deposition  COMSOL  Parallel processing 
學科別分類
中文摘要 3D列印技術為近年蓬勃發展之加工技術,此技術是應用將材料分層堆疊之概念,自動化生產具有複雜形面的三維實體零件,並免去傳統加工之切銷程序不需依賴特製的模具與加工機具。目前發產的個人型3D列印機技術已相當純熟,但材料之選用是以塑膠材料為大宗,而金屬件的製作則須仰賴選擇性雷射燒結(Selective Laser Sintering)與選擇性雷射融熔(Selective Laser Melting)此類大型的設備,其加工材料為顆粒或粉末狀之金屬,在成品完成後須噴除表面批附的多於材料。未來更簡便更親民的金屬3D列印技術之發展將會是一個重要的課題,熔滴沉積之製造方法可以形成緻密的成品,並直接於加工基板上將模型完成而不需做多於耗材之移除,是一項極具發展性之3D列印技術。本研究將針對金屬熔滴之鋪展利用COMSOL有限元素分析軟體建立其流動與固化之數值分析模型,呈現出熔滴動態的鋪展過程。接著討論當研究的規模與精度提高時,記憶體之使用量也將大幅的提高,故本研究將針對COMSOL於叢集電腦上之平行運算做測試,比較不同台數間的差異。
英文摘要 3D printing is a manufacturing technology which is rapid development in this few years. It can synthesize a three-dimensional object with complicated geometry by using additive layer and without using traditional manufacturing like turning or milling.3D printing is very popular and we can see many kind of desktop 3D printer nowadays. But most of their product are made of plastic. If we want to manufacturing metal product, we have to use SLS(selective laser sintering) or SLM(selective laser melting), and the material will be metal powder. But we have to clean out the powder which is covering our product after the process was complete. Developing a more simple and convenient 3D printing technology were an important topic in the future. Melting droplet deposition can generate firm object, and without the remove process like SLM. It is a growth-oriented technology. This article will build an additive manufacturing model about droplet behavior of spreading and solidification by using COMSOL finite element simulation software. When the scale of the model and difficulty became higher. So did the memory usage. Therefore, this article will running COMSOL in parallel and testing the efficacy between dif-ferent number of nodes.
論文目次 中文摘要I
AbtstractII
誌謝VIII
目錄X
表目錄XIII
圖目錄XIV
符號說明XVII
第一章 緒論1
1-1 研究背景1
1-1-1現行3D列印成型機制2
1-1-2 3D列印於金屬物件的製造4
1-1-3 應用雷射加工的3D列印技術5
1-2 熔滴沉積成型8
1-3 研究目的9
1-4 本文架構9
第二章 理論分析11
2-1 Navier-Stokes 方程組11
2-2 熱傳方程式15
2-3 Level set method 等位函數法21
第三章 數值方法24
3-1 有限元素法24
3-2 有限元素法分析過程30
3-3 COMSOL Multiphysics 有限元素分析軟體31
3-4 物理模型建立35
第四章 實驗結果37
4-1 熔滴鋪展與固化37
4-2 COMSOL 平行運算43
4-2-1硬體設備介紹44
4-2-2 實驗結果比較45
第五章 結論與未來展望51
5-1 結論51
5-2 未來展望52
參考文獻53
參考文獻 [1]J.-P. Kruth, M.-C. Leu, and T. Nakagawa, "Progress in additive manufacturing and rapid prototyping," CIRP Annals-Manufacturing Technology, vol. 47, pp. 525-540, 1998.
[2]E. Sachs, M. Cima, J. Cornie, D. Brancazio, J. Bredt, A. Curodeau, et al., "Three-dimensional printing: the physics and implications of additive manufacturing," CIRP Annals-Manufacturing Technology, vol. 42, pp. 257-260, 1993.
[3]R. Singh, "Three dimensional printing for casting applications: A state of art review and future perspectives," in Advanced Materials Research, 2010, pp. 342-349.
[4]P. Kulkarni, A. Marsan, and D. Dutta, "A review of process planning techniques in layered manufacturing," Rapid Prototyping Journal, vol. 6, pp. 18-35, 2000.
[5]G. N. Levy, R. Schindel, and J.-P. Kruth, "Rapid manufacturing and rapid tooling with layer manufacturing (LM) technologies, state of the art and future perspectives," CIRP Annals-Manufacturing Technology, vol. 52, pp. 589-609, 2003.
[6]K. Thrimurthulu, P. M. Pandey, and N. V. Reddy, "Optimum part deposition orientation in fused deposition modeling," International Journal of Machine Tools and Manufacture, vol. 44, pp. 585-594, 2004.
[7]M. Feygin, A. Shkolnik, M. N. Diamond, and E. Dvorskiy, "Laminated object manufacturing system," ed: Google Patents, 1998.
[8]L. J. Hornbeck, "Digital light processing for high-brightness high-resolution applications," in Electronic Imaging'97, 1997, pp. 27-40.
[9]S. Kumar, "Selective laser sintering: a qualitative and objective approach," JOM, vol. 55, pp. 43-47, 2003.
[10]M. Agarwala, D. Bourell, J. Beaman, H. Marcus, and J. Barlow, "Direct selective laser sintering of metals," Rapid Prototyping Journal, vol. 1, pp. 26-36, 1995.
[11]T. Childs, C. Hauser, and M. Badrossamay, "Mapping and modelling single scan track formation in direct metal selective laser melting," CIRP Annals-Manufacturing Technology, vol. 53, pp. 191-194, 2004.
[14]林鼎勝. "3D 列印的發展現況." (2014).
[15]N. K. Tolochko, Y. V. Khlopkov, S. E. Mozzharov, M. B. Ignatiev, T. Laoui, and V. I. Titov, "Absorptance of powder materials suitable for laser sintering," Rapid Prototyping Journal, vol. 6, pp. 155-161, 2000.
[16]林建翰. "3D 列印雷射相關技術專利到期後時代分析." 光連: 光電產業與技術情報 115 (2015): 9+-11.
[17]Nie, Zhenguo, et al. "Experimental study and modeling of H13 steel deposition using laser hot-wire additive manufacturing." Journal of Materials Processing Technology 235 (2016): 171-186.
[18]http://www.comsol.com/.
[19]Fox, Robert W., Alan T. McDonald, and Philip J. Pritchard. Introduction to fluid mechanics. Vol. 7. New York: John Wiley & Sons, 1985.
[20]普朗特, and 永怀. 流体力学概论. 科学出版社, 1974.
[21]文铨. 计算流体力学与传热学. 中国建筑工业出版社, 1991.
[22]Cengel, "Heat and Mass Transfer: Fundamentals and Applications 4/e," 2011.
[23]Sussman, Mark, Peter Smereka, and Stanley Osher. "A level set approach for computing solutions to incompressible two-phase flow." Journal of Computational physics 114.1 (1994): 146-159.
[24]S. Osher, R. Fedkiw, “Level Set Methods and Dynamic Implicit Surfaces.”Springer, 2003.
[25]Felippa, Carlos A., and Ray W. Clough. The finite element method in solid mechanics. American Mathematical Society, 1970.
[26]K. H. Huebner, Thornton, Earl A., Byrom and Ted G., "The Finite Element Method For Engineers Third Edition," John Wiley & Sons, Inc., 1995.
[27]陳昭昌, and S. S. Rao. "有限元素法-工程上之應用." 復文書局, 台南市, 第 2-3 頁 (1989).
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