高速切削SKD61模具鋼刀具之幾何角度切削性能分析

The Analytical of Machinability of End-Mill Geometry for High Speed Milling SKD61 Tool Steel

目前由於國際競爭與市場統合之強化趨勢，再加上國內經濟情勢的轉變，迫使原有的競爭優勢益呈逆轉，國內廠商紛紛移往海外投資生產，如何提昇產業技術水準及整體產品包裝，以提高競爭力是政府與業界首要努力目標之一。高速銑削刀具市場，由於國內製造業或模具業在刀具的採用上，往往喜愛選擇比國內生產之刀具貴上3~4倍的國外刀具，究其原因乃是對本土產品沒有信心之故，且國內刀具製造商都屬於20人以下的小型企業，研發能力弱，所以產品大部份承襲國外。本研究完成一套建構完整之高速端銑刀具的幾何形狀參數，對切削SKD61模具鋼的切削性能影響之分析模式，可提昇國內刀具製造商的開發設計能力，進而延伸此研究成果模式對其它材料（鋁合金、鈦合金…）加工所需刀具之設計開發，即是將開發設計技術的Know-How建立在國內刀具製造廠商和公司內，使中小企業奠定基礎並永續經營。

Because of international competition, the integration of world markets, and the environment of economic conditions, the advantages we had have gone away. That has caused many factories to move overseas for good profits. It becomes more and more important for factories to promote the techniques of production in Taiwan. Although the prices of HSM end-mill tools made in Taiwan is 1/4 to 1/3 of those made by advanced countries, the factories in Taiwan use cutting tools made by advanced countries rather than those made in Taiwan in the high speed machining (HSM) field. This shows that engineers in the cutting field have less confidence in the cutting tools made in Taiwan. One of the reasons announced by cutting engineers is that the tool manufacturers in Taiwan are too small to do research and design in the field of HSM cutting tools.The main purpose of this project is to construct an analytic model which shows the relationships between the geometry of end-mills and the cutting performance of SKD 61 mold-die steel. The (R&D) ability of tool manufacturers in Taiwan shall be improved by using this system. Also, tool manufacturers can model this system for other materials (Aluminum, Titanium,…) in their advanced tool designing. That is to say, the know-how of tool design can be enhanced in the factories which still stay in Taiwan. Also, the factories shall promote their competitive position in the world.