- 學位論文
以快速原型技術製作不鏽鋼工件之可行性研究
Study on the feasibility of making stainless steel by rapid prototyping technology
摘要
本文研究目的主要研究以漿料法快速原型技術來製作高緻密度不鏽鋼工件之可行性。因金屬漿料易沉澱，鋪層需要由防止漿料沉澱之鋪料機構來進行生胚的製作，故先從機構部分著手，再進行製程的研究。 以現有系統為基礎，加強其鋪層穩定性，並同時實現全自動化的功能。機構改善包含主要零件的替換及改良、系統簡化、自動化裝置的安裝，最後再經由實驗來找出最佳之鋪層參數。過去因粗粉緻密度不佳，研究中加入兩種更細的粉末來進行漿料調配、工件實作及緻密度量測。首先進行鋪層可行性實驗，其次以漿料法製程進行工件製作，最後對細粉與粗粉所製作的工件做緻密度比較。 研究結果顯示，經過改善之鋪料系統已解決過去產生之問題，並可實現全自動化的運作。漿料法可製作出簡單2.5D工件。工件緻密度量測結果，細粉所製作的工件較粗粉所製作者擁有更佳的緻密度。
並列摘要
The aim of this paper is to study the feasibility of fabricating stainless components with high density by the slurry-based additive manufacturing technique. The metal slurry is easy sedimentation, so layer paving should accomplished by a paving mechanism with a capability of anti-sedimentation to build the green components. The initial study is the mechanism improvement, and then the process study follows. Based on the existing the system, current study is to enhance the stability of the paving and realize the automation. The improvement of mechanism includes the replacing the main parts, simplifying the system, and installing the automation devices. At last, the optimal paving parmeters can be found through the experiments. In the previous studies, the density of the component built with coarse powder was poor. Current study included fabrication of components with slurry which were added two kinds of fine powder, and observation of component density. The study reveals the improved paing system sloved the sedmimentation problem and realized the system automation. The slurry method can build the 2.5D components with sample geometry. The component built with fine powder possesses a higher density than that of the componet made of coarse powder.