伸線眼模最佳化設計方法

Optima Design Method for Wire Drawing Die

陳光宇 ； 楊凡毅 ； 林育賢

《機械工業雜誌》 417期 (2017/12) Pp. 51-56

摘要

金屬線材在日常生活中扮演著不可或缺的角色，舉凡傳輸電力之電纜與電線、半導體產業所使用之封裝導線等，皆係透過伸線製程所生產。伸線製程為塑性加工領域之一環，係一種將金屬線材透過抽、拉等形式，行經眼模後改變斷面積大小之工法。眼模漸進區與伸線成形息息相關，其幾何參數可由形狀因子描繪。模半角為控制形狀因子之重要參數，最終將影響伸線應力之大小。為提升伸線之成功率，本研究提出了一眼模最佳化設計方法。先行求解最佳化伸線應力方程式，爾後將結果代入眼模幾何參數進行最佳化設計，最後探討多種邊界條件下之最佳製程參數。

關鍵字

伸線製程 ； 眼模幾何 ； 最佳化設計

並列摘要

Metal wires, such as the cables and wires for power transmission, and the bonding wires for semi-conductor industry, play an important role in our daily life. They are typically manufactured by wire drawing process, which is a kind of metal forming. The cross-section of the wires is shaped by going through wire drawing die. The shaping process is significantly influenced by die approaching zone, which could be characterized by size factors. In advance, the factors are determined by the semi-die angle, which affects the scale of drawing stress. In order to help increase the success rate of wire drawing, an optima die design method is proposed in this research. Optima drawing stress equation is worked out firstly. Optima geometrical parameters are then obtained based on the evaluation process. In the end, different boundary conditions of wire drawing process based on the optima method are discussed.

並列關鍵字

Wire Drawing Process ； Die Geometry ； Optima Design