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研究生： 林柏志
Lin, Po-Chih
論文名稱： 以積層製造旋轉對連桿一體成形之擺放方向研究
Studies on Build Orientation for Additive Manufacturing of Integrally Formed Revolute Pairs Bar Linkage
指導教授： 李榮顯
Lee, Rong-Shean
學位類別： 碩士
Master
系所名稱： 工學院 - 機械工程學系
Department of Mechanical Engineering
論文出版年： 2016
畢業學年度： 104
語文別： 中文
論文頁數： 101
中文關鍵詞： 擺放方向最佳化 、旋轉對連桿機構 、積層製造 、一體成形 、可成形性評估
外文關鍵詞： Optimal build orientation, Revolute pair bar linkage, Additive manufacturing, Integrally formed mechanism, Feasibility evaluation
相關次數： 點閱：127  下載：3 
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    • 機構的製作最後一道製程便是組裝，組裝的精度會影響機構運作的流暢性。近年來，隨著加工技術的進步，機械製造有了新的選項，即是積層製造(Additive Manufacturing，AM)。積層製造利用將材料層層堆疊的特色，不止是產品外型可以製作，甚至連產品內部結構也能夠完整的產生出來。本研究將探討由旋轉對組成的連桿於積層製造一體成形的製造可行性，提供一個有效的方法幫助機械設計師評估該機構是否具有製造可行性。對於使用旋轉對組成的機構，本研究所提出之旋轉對連桿一體成形之擺放方向判定方法，能夠使旋轉對機構一體成形的可行性大幅提高。如此一來，便能夠減少人員組裝所造成的誤差以及節省產品開發時間。本研究之方法也能夠運用到各種類型的積層製造製程，不止是針對一般大眾熟知的熔融擠製成形技術，也能夠運用於雷射選域燒結技術上。

    The final process of mechanism manufacturing is assembly. The precision of assembly will affect whether the operation of mechanism is smoothly or not. Recently, with the advances of the manufacturing technology, there is a new option for manufacturing, that is, additive manufacturing. Characteristics of additive manufacturing is adding the material layer by layer that builds product not only the external but also the internal structure. The feasibility evaluation method for additive manufacturing of integrally formed revolute pair bar linkage was studied in this thesis. Following the design guideline of the revolute pair and using the methodology of optimal build orientation that proposed in this thesis, mechanisms that comprise of revolute pair are able to increasing its feasibility of integrally formed process. As a result, reducing the human error from assembly and saving product development time. The methodology developed in this research is also applicable to other type of additive manufacturing apart from fused deposition modeling, for example, selective laser melting.

    摘要 I Abstract II 致謝 XIII 目錄 XV 圖目錄 XIX 表目錄 XXII 演算法則 XXV 第一章 緒論 1 1.1 前言 1 1.2 研究動機與目的 2 1.3 文獻回顧 3 1.3.1 數位模型資料結構與特徵擷取(Feature extraction) 4 1.3.2 擺放方向(Build orientation) 5 1.3.3 過去實驗室研究成果 7 1.4 研究方法 8 1.5 論文架構 8 第二章 積層製造可行性評估方法 10 2.1 概述 10 2.2 一體成形機構評估標準件 12 2.2.1 幾何分析 12 2.2.2 旋轉對接頭分析 16 2.2.3 評估標準件設計 20 2.3 實驗設計最佳化方法 26 2.3.1 田口設計方法 26 2.3.2 灰局勢決策 28 2.4 旋轉對一體成形評估 31 2.5 評估知識庫建立 40 2.5.1 JSON(JavaScript Object Notation)檔案格式 40 2.5.2 知識庫資料物件化 42 第三章 擺放方向最佳化評估方法 44 3.1 擺放方向評估流程規劃 44 3.2 自動特徵擷取 46 3.2.1 Half-Edge資料結構建立 46 3.2.2 網格特徵擷取 48 3.3 體積誤差計算 51 3.4 最佳化方法 54 3.4.1 基因演算法(Genetic algorithms) 55 第四章 系統實作 61 4.1 系統設計 61 4.1.1 系統規劃 61 4.1.2 系統架構 62 4.2 實驗機器與設備選定 64 4.3 設計與製程參數資料蒐集 65 4.3.1 實驗數據蒐集 65 4.3.2 誤差資料整理及JSON檔案建立 72 4.4 系統功能建立 75 4.4.1 誤差資料建立 75 4.4.2 特徵擷取功能 79 第五章 結果與討論 80 5.1 擺放方向模擬驗證 81 5.2 不同門檻值之特徵擷取結果 89 第六章 結論與未來展望 93 6.1 結論 93 6.2 未來展望 94 參考文獻 95 附錄 98 附錄A 實驗表格 98

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