2002-08-012024-05-18https://scholars.lib.ntu.edu.tw/handle/123456789/710882摘要：台灣IC工業及電子業在世界舞台已漸露鋒芒，為保持這項優勢，則迫切需要機械工業往精密化、微細化的研發方向密切配合。印刷電路板(Printed Circuit Board)產業所大量需求的微型鑽頭(Microdrills)為例，不啻要更微小化，更要提昇其鑽孔效果並增長其使用壽命。現行微鑽頭產品製程上主要有切溝砂輪截面外型判斷不易以及鑽頭成品切刃品質不佳這兩個明顯的問題。針對此兩問題若能提出有效解決方式，對微鑽頭精密加工產業的發展將有立即效益。 本計劃針對微鑽頭設計/製造關鍵技術進行研究，首先以VC++語言程式配合MATLAB數值分析軟體以及CATIA繪圖軟體建立一微鑽頭切溝砂輪截面外型計算模組進行切溝砂輪截面外型計算及驗證，並依本計算模組提出鑽尖之幾何最佳化並付以實驗驗證。鑽孔加工的力學型態與其他機械加工有很大的不同，加工過程材料移除機制中，切削方向隨著轉動而不斷改變，切削的角度也隨著半徑不同而不同，其切削加工幾何模式非常複雜且難以掌握。以適當的鑽頭幾何切削模式，配合本計劃提出的自動鑽頭切溝砂輪截面外型計算程式並規劃實驗實際驗證，則可順利解決製程上遇到的問題。 本計劃第二階段依<br> Abstract: The IC and electronic industries in Taiwan have taken a key role on the world-wide arena. To keep this leading edge, it is essential to receive support from the Mechanical counterpart, which can intimately work together towards the development of new products with higher precision on a smaller scale. The PCB industry, for example, has great demand on microdrills that provide quality holes while maintain reasonably good tool life. Improvement on the design and manufacturing of the microdrill can thus bring immediate benefits to the Industry. This research focuses on certain key aspects of microdrill design and manufacturing. CATIA and MATLAB are applied as developing tools for the design of grinding wheel in cutting the drill flutes. Optimization of the point-drill profile is an objective to pursuit. Mechanics in drilling operation is rather complex. With appropriate geometric model and the developed module, most production issues can be well handled. On the 2nd stage of the project, the phenomenon of brittle-ductile transition (BDT) with carbide tool steel for the microdrill are investigated. The influencing parameters are then studied. The purpose is to accumulate an effective database for an improvement on surface integrity of the microdrills. The performance and tool life are expected to be enhanced in this way. The nature of the microdrill machining is on the nano-scale. Implementation of the project will assist the expansion of BDT machining database to other engineering materials, and hence promote the research capacity on nano-machining in Taiwan.微鑽頭精密加工電腦輔助設計製造延性加工奈米加工microdrillsprecision machiningCAD/CAMnano-technology