隨著3D列印各類技術的專利陸續到期，積層製造正式進入了快速發展期，「塑料擠料成型」及「樹脂光固化成形」技術競爭激烈，而金屬積層製造由於其技術門檻較高，研究經費較龐大，還在研究後期到發展初期之間，但由於其在國防及航太工業的潛力，各國近年來皆視金屬積層製造為重點開發項目。
本研究針對靜電吸附可以大範圍鋪層及金屬材導電的特性，提出利用「靜電吸附」的成型方式來實現金屬粉末鋪層階段，並研究其製程流程，此製程的特色在於「間接鋪層」的特性，使其不需受限於現有「粉床熔化成型」技術因粉床大小的幾何大小限制及須從零開始積層的缺點，適合搭配台灣的工具機產業轉型進化成混合加工機以達到工具機價值提升或做曲面修補用途。
為了驗證此製程的可行性，對於鋪層的鋪層厚度的可控制性及表面粗糙度是判定標準之一，在本論文的前半部，針對介電油層塗佈流程做噴塗試驗，以求達到介電油均勻的鋪層。在論文的後半部，針對靜電吸附的厚度控制，本研究提出了「靜電吸附模型」來預測鋪層粉末層厚，並透過實驗驗證模型的正確性，並針對鋪層之實驗參數分析可發現靜電場的分布大小、幾何關係皆會影響到鋪層的速度。
此篇論文提出「靜電吸附」於金屬粉末積層製造的鋪層方法的解決方法，此製程的特色為「面成形」及「間接鋪層」，並針對製造流程的特性探討及實驗參數分析，在噴塗實驗針對所使用的介電油做噴塗成型分析，在靜電吸附實驗則針對鋪層的厚度提出模型並驗證，另外針對靜電設備的參數做鋪層的探討。

Due to many basic expired patents of 3D printing technology, the product of 3D printer had entered a high-growth period. There is lots of competition in 3D printers with 3D printer technology of “fused deposition modeling” (FDM) and “stereolithography” (SLA). Although the technical threshold of metal additive manufacturing and the development funds is relatively high compared to other 3D printer technology, many countries have regarded metal additive manufacturing as an important development project due to its potential in the area of the defense industry and aerospace industry.
“Electrostatic deposition method” has the characteristic of forming large-area layers in a short time. We studied the process of using the electrostatic deposition method in the metal-powder additive manufacturing technology in this research. The method we used in the research has the feature of forming the layer through the air without direct contact, making it easy to combine with subtraction processing and the potential in the area of surface repairing. The concept of combining additive and subtractive manufacturing is called hybrid manufacturing. CNC industry in Taiwan can add the function of additive manufacturing into their traditional machine tool to enhance their product value.
To verify the feasibility of the method, we should study about the controllability of the layer thickness, coverage rate and the surface roughness of the layer. In the first half of the paper, we studied about the spraying method for even coverage of the dielectric film. In the second half of the paper, we modeled the electrostatic deposition process to predict the deposition thickness of the powder layer, then we verify the created model with experiment and analyze the experimental parameter. According to the results of the experiment, the applied electric field and the geometry of the experiment setup would influence the powder forming rate.
We investigated the topic of applying electrostatic deposition method in the powder-based-additive-manufacturing with the feature of forming powder layer in a large area and deposition without direct contact. We did the experiments of the process and studied about the parameter and the results of deposition condition.

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