摘要
冷抽加工技術適用各種金屬加工成型，近年來由於機械加工能力的進步，冷抽加工技術由細線材冷抽逐漸應用於各種樣式的管材或棒材冷抽。冷抽加工最關鍵之技術在於模具及道次之設計，如何有效的分配道次與設計模具極為重要，也嚴重的影響冷抽加工成型後的品質與可能發生破壞的情形，如模眼設計不佳會使工件經過模眼時工件因截面幾何形狀的不對稱，可能導致工件嚴重彎翹甚至末端表面發生刮料現象。 本研究利用數值模擬分析軟體SIMUFACT分析AISI4130材料冷抽製程的工件成型性，針對C型非對稱截面型材，以冷抽製程將工件加工成各式機械元件成品，如梁柱結構件、滑軌、滑塊等。由工業界經驗得到的模眼入口錐度設計與C型非對稱截面型材的截面幾何形狀為出發點，進行不同截面形狀模眼進行單道次冷抽抽製力、工件所受之等效應力及工件冷抽成型性之研究。建立工件於冷抽製程中彎翹程度的定義方式，由彎翹程度預測工件發生刮料現象機會的高低，確認工件無刮料情形後，接著探討模眼幾何形狀、模眼裁減方式的組合與模眼錐度變化對於冷抽製程道次設計與製程參數設定的適用性及其所需要克服的問題，並藉此找出較佳方案以便優化非對稱型材冷抽製程，利於未來研究人員及工程師對冷抽模具模眼設計的參考依據。
並列摘要
Cold drawn processing technology for a variety of metal forming, in recent years, thanks to advances in machining capacity, cold drawn by a thin wire processing technology increasingly used in a variety of styles of cold drawn pipe or cold drawn bars. Quality and possible damage situations are the most crucial technology in cold drawing process. It is extremely important to effectively allocate passes and design of die in the cold drawing process. For example, the bad design of die make the workpiece lead to severe warping and even the end of the workpiece surface scraper phenomenon when the workpiece through the asymmetry-sectional geometry die. In this study, the use of numerical simulation analysis software SIMUFACT analysis AISI4130 material cold drawn process workpiece moldability. For C asymmetrical sectional profiles, cold drawn process will the workpiece into a variety of mechanical products, such as beam-column structure, sliders and so on. Design of die with a C-shaped asymmetrical cross-sectional profile with the industrial experience as a starting point. Different cross-sectional shape of the die in the single pass cold drawing of power, the equivalent stress and the moldability of workpiece need to analyze. After establishing the workpiece in cold drawn manufacturing process warping degree is defined by bending degree, predicting the workpiece without scraper case, and then exploring the die geometry, the reduction and die angle change system for cold drawing process.