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    Please use this identifier to cite or link to this item: http://ccur.lib.ccu.edu.tw/handle/A095B0000Q/148


    Title: DLP積層製造物件列印之最佳建構方向
    Authors: 蘇柏元;SU, BO-YUAN
    Contributors: 機械工程系研究所
    Keywords: 積層製造;DLP;最佳方向;粗糙度模型;Additive Manufacturing;DLP;Optimal direction;Roughness model
    Date: 2018
    Issue Date: 2019-05-23 12:52:43 (UTC+8)
    Publisher: 機械工程系研究所
    Abstract: 隨著積層製造(Additive Manufacturing)技術的逐漸成熟,開始被大量運用於製造領域當中。其優勢相對於其他工法無須複雜的生產程序,當產品出現錯誤時能迅速修改,能有效的減少產品的設計週期。對設計者而言,在模型的設計與修改上更為便利,來因應各領域逐漸要求快速開發成型之需求。 然而在實際的製造上,積層製造的物件與原先設計的CAD模型間存在著一定的精度誤差。主要是積層製造上的限制,使得物件在層層堆積後在表面產生的階梯效應,造成表面、體積上的誤差。為了降低所產生之誤差,本文透過對物件的旋轉,改變物件模型的切層、列印方向。得到該列印方向,在相同層厚的限制下,能取得擁有最佳精度的物件,並透過歸納的方式得到適用於大多數物件的最佳建構方向簡易判斷。 本文研究重點在建立一個適用於DLP(Digital Light Processing)製造形式的粗糙度模型。所建立模型之絕對平均誤差約為0.94um,約為粗糙度最大值的百分之四左右。配合物件旋轉後各個面所對應的粗糙度進行計算,從中得到最佳建構方向,並歸納出其方向的共同指標。將測試物件帶入粗糙度模型進行旋轉計算,在不計算包含支撐面的情況下,四種測試物件之最佳方向皆有共同之特性。即該方向上,朝上水平面面積為最大值者,為最佳建構方向。關鍵詞:積層製造、DLP、最佳方向、粗糙度模型
    With the gradual maturity of Additive Manufacturing technology, what started to be used in the manufacturing. The advantage of the production process is not complicated compared to other methods. It can be quickly modified when the product goes wrong, which can effectively shorten the product design cycle. For the designer, it is more convenient to design and modify the model to meet the needs of rapid development of molding in various fields.However, in actual manufacturing, there is a precision error between the fabri- -cated article and the originally designed CAD model. Mainly due to the limitation of Additive Manufacturing System technology, the step effect generated on the surface after the layers are stacked, causing errors in surface and volume. In order to reduce the error generated, this study changes the direction of slicing and printing of the mo- -del by rotating the object. Obtaining the printing direction, under the limitation of the same layer thickness, the object with the best precision can be found, and got the sim- -ple judgment of optimal direction suitable for most objects by the induction method.The purpose of this study is to establish a roughness model suitable for DLP (Di- -gital Light Processing) manufacturing of the 3D printer.The absolute error of model is about 0.94um. That is calculated by calcu- -lating the roughness corresponding to each surface after the object is rotated, the op- -timal direction is obtained from it, and be got the common indicators of the direction by the induction method. The test object is brought into the roughness model for rota- -tion calculation, and the optimal direction of the four test objects has the same cha- -racteristics without calculating the support surface. The direction of upperside of horizontal surface area is maximum, which is optimal direction.Keyword: Additive Manufacturing、DLP、Optimal direction、Roughness model
    Appears in Collections:[機械工程學系] 學位論文

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