3D列印近年來廣泛應用於各領域，屬於工業機器人的一種，成品由簡而精，材料上也有相當大的突破，從塑膠材料提升至金屬材料或特殊金屬材料。為了因應近年金屬材料與發展梯度功能性材料之趨勢，以現有積層製造方式必須對其製造碼(G-Code)加以編輯以符合應用需求，此外產品製造後微觀品質與巨觀機械性質之檢測，以建立金屬疲勞量測之原型機台。
本研究之目的是以雙色FDM（Fused Deposition Modeling）成型技術為基礎，建立DED(Directed Energy Deposition)基本控制系統與金屬列印相關製造碼。以雙色列印模擬兩種金屬混合之積層製造，於機台上加入遠端送線與線性模組伺服控制，雙色擠出控制系統與製造碼之編輯，雙噴頭的設計得以印製不同以往單一色調的製品，印製梯度功能性材料依高度或角度改變、混色物體、平面披覆、軸對稱材料披覆之功能，可因混色比例、圓管直徑和長短客製化產生G-Code，與印製雙色產品於FDM積層實現。
此外對於機械性質的測試，提出一微型疲勞實驗機的測試方式，未來可提供梯度功能性材料之疲勞測試成果，以建立品質控制調校之參考，在機台產生疲勞應力方面使用Faraday’s experiments原理為基礎，由控制模組輸出PWM訊號，電流輸出方向不斷改變下產生磁性，進行疲勞實驗，在程式方面由myDAQ接收雷射感測器輸出之類比訊號，myDAQ輸入至Labview程式中做存取與計算，並匯出距離RMS值與週期對數之關係圖。

3D printing has been widely used in various fields in recent years. It is a kind of industrial robot. The finished product is simple and refined, and there are also considerable breakthroughs in materials, from plastic materials to metal materials or special metal materials. In order to respond to the trend of metal materials and the development of gradient functional materials in recent years, it is necessary to edit the manufacturing code (G-Code) to meet the application requirements in the existing laminated manufacturing method, and to detect the micro-quality and macroscopic mechanical properties after manufacturing. Establish the foundation of quality control.
The purpose of this study is to establish a Directed Energy Deposition basic control system and metal printing related manufacturing code based on the two-color Fused Deposition Modeling technology. Two-color printing simulates the lamination of two metal blends. The remote feed line and linear module servo control are added to the machine. The two-color extrusion control system and the manufacturing code are edited. The design of the dual nozzles can be printed differently. Toned products, printed gradient functional materials according to height or angle change, color mixing objects, flat coating, axisymmetric material coating function, can be generated by the color mixing ratio, diameter of the tube and length of the G-Code, and Printed two-color products are realized in FDM laminates.
In addition, for the testing of mechanical properties, a test method of micro fatigue testing machine is proposed. In the future, fatigue testing results of gradient functional materials can be provided to establish a reference for quality control adjustment. Faraday's experiments principle is used to generate fatigue stress in the machine. Basically, the control module outputs the PWM signal, the current output direction changes continuously to generate magnetism, and the fatigue experiment is performed. In the program aspect, the analog signal output from the laser sensor is received by myDAQ, and the myDAQ is input to the labview program for access and calculation. And reciprocate the relationship between the RMS value and the logarithm of the period.

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