積層製造(Additive manufacturing，AM)採用離散材料(液體、粉末、絲、片、板、塊等)逐層累加原理製造實體零件的技術。一種無模加工方法。本方法不受物件形狀與複雜度限制，可直接根據電腦繪製之三維物件依照需要的材料製作實體物件，其備有客製化、節能、迅速、彈性、極高性價比等優點而達成「設計個人化、浪費極小化」，現正逐漸用於一些產品的少量直接製造，特別是一些高價值應用，如生醫零件或航太零件都可以採用這種技術。雖然加法製造的積層成型技術有很多的優點，但仍然有一些瓶頸需要去克服，如、沉積效率、成品頂部高低差、孔隙率與機械性質等問題。 本研究目的為運用實驗方式，建立智慧型生產設備的智能資料庫。實驗分別研究針對不同製程參數來探討其對成品品質之影響，找出有顯著影響力之因子及最佳化之趨勢。
本研究透過一次因子實驗分析各因子對沉積品質的影響，對實驗結果進行分析形成沉積缺陷之原因，並進一步變動製程嘗試解決，進行最佳化分析以提高沉積效率與表面平整度。除了宏觀的表面品質分析外，也將對微結構進行探討，針對雷射功率、送粉量及雷射掃描速度三個具有顯著影響力之參數分析了其對孔隙率、稀釋率及晶相結構之影響及最佳化之趨勢。並將實驗結果透過數值軟體整合，建立出「成品品質預測方程式」。成功建立成型資料庫，達到製程最佳化目標來當作智慧化機械之起步。

AM (Additive manufacturing) is a novel technique to manufacture physical parts layer by layer using discrete materials such as liquid, powder, silk, film, plate, block, etc. Different from the traditional processing methods using equipment to subtract parts, for example, the use of lathe processing, grinding, etc. The purpose of AM is to achieve "personalized design, waste minimization". The process has advantage of customization, energy saving, rapid, flexible and high-performance performance. Currently, medical parts or aerospace parts can use this technology for a small number of direct manufacturing products.

Although the additive manufacturing technology has many advantages, there are still some bottlenecks need to overcome. The influence of process parameters on the quality of cladding needs to be studied. In order to design a robust process, the materials and heat transfer knowledge are essential. The related literature must be searched to define appropriate performance index. Meanwhile picking out important experiment parameters, so that the research process more efficient and the results more valuable.

To simplify the complexity of laser cladding experiment design, we listed total adjustable parameters table, excluding the less impact of experiment factors, and first sorted out the appropriate setting range of parameters. In this paper, the direct manufacture of rectangular thin-walled parts were analyzed to find out the key factor parameters on the porosity, dilution, surface evenness and deposition efficiency of the impact and confirmed the difference before and after.

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