2001-08-012024-05-17https://scholars.lib.ntu.edu.tw/handle/123456789/692929摘要：為滿足產品特殊功能要求，目前諸多產品的設計趨勢漸趨複雜，特別是航太零組件。台灣正朝向航太製造中心的方向上努力，其關鍵零組件為航太用渦輪葉片。要製造該零組件，以傳統三軸的加工方式，事實上有其先天的限制，尤其是曲面在刀軸方向有重疊的情況；因此五軸加工的研究更顯出其重要性。 渦輪葉片的葉片部分，在設計上多採直紋曲面的設計，為了要滿足流體機械的特性，曲面本身會作適度的扭曲，而在加工時會發生過切與干涉的問題。另外，渦輪葉片在輪轂部分經常呈現不規則的曲面設計，加工時需要在窄而深的加工區域作銑削。如何在符合加工品質的要求下，減少加工的時程，同時避免碰撞的發生，是製程上(刀具路徑規劃)需要解決的關鍵問題。 五軸加工的另一重點是後處理器的設計。如此該葉片在前階段所產生的加工路徑將可以在任何不同型態(Configuration)五軸工具機上進行銑削，以確實提升葉片加工自動化的程度。 本研究將整合上述渦輪葉片的加工技術和五軸後處理程式技術，撰寫一套針對渦輪葉片的加工模組。日後將可利用電腦輔助製造的加工模組，規劃相同幾何形狀或是類似幾何形狀的渦輪葉片刀具路徑與加工程序。 <br> Abstract: It is a design trend that most of the products or mechanical components, especially the parts for aerospace application, have the requirement for free-form surface features. Take the key component of the aerospace application, impeller, for instance , great difficulties i.e. collisions between cutting tool and the machined piece, are to be faced when 3-axis CNC machining center is used. This gives an indication for the importance of five-axis machining research. The blade of the impeller is usually designed as ruled surface. Because the surface is further twisted in design to achieve the performance required by the hydraulic machinery, over-cut and collision problems are likely to occur in machining. The hub of the impeller is usually designed in irregular surface. Machining the hub should be in narrow and deep area. The issues - how to satisfy the quality of the part, reduce the machining time and avoid the occurrence of collision, need to be solved. In the practice of multi-axis machining, the general post processor for the type of machine tools commonly seen on market is needed. Completion of the above task can promote the degree of automation in machining the impeller.五軸加工電腦輔助製造五軸後處理刀具路徑CAMTool Path PlanningMulti-axis MachiningPost Processing