教師資料查詢 | 類別: 會議論文 | 教師: 李經綸 Li Ching-lun (瀏覽個人網頁)

標題:金屬薄板微成形加工製程之成形性研究與應用---子計畫三:金屬薄板微引伸成形性之研究與應用
學年96
學期1
發表日期2007/11/23
作品名稱金屬薄板微成形加工製程之成形性研究與應用---子計畫三:金屬薄板微引伸成形性之研究與應用
作品名稱(其他語言)A Study and Application on Micro-Forming of Deep-Drawing Process of Metallic Thin Sheet
著者李經綸; 葉豐輝; 林千森; 張瑞永; 李建輝; 陳嘉彬; 黃佑民
作品所屬單位淡江大學機械與機電工程系
出版者
會議名稱機械固力學門成果發表會
會議地點臺北市, 臺灣
摘要本計畫以三維動顯函有限元素程式分析金屬薄板微引伸成形,並以微拉伸試驗機擷取銅箔材料參數,帶入程式中進行圓杯微引伸與方杯微引伸之成形性分析,完成不同模具尺寸微引伸成形之沖頭負荷、主應力分佈、主應變分佈、杯高分佈及厚度分佈之模擬。在尺寸效應方面,本計畫將料片厚度及晶粒大小導入材料應力-應變構成式,並利用適當之猜測值,以期使用單一方程式就能準確預測不同料片厚度及晶粒大小之應力-應變曲線,結果顯示,與單純應力-應變構成式相比,導入尺寸效應因子的應力-應變構成式差距皆在5%以內。;The 3-D dynamic finite element program was used to analyze the micro deep-drawing of metallic thin sheet. The material properties of cooper foil were obtained from the micro tensile test machine. The material properties substituted into the program to analyze the formability of the cylindrical-cup and square-cup micro deep-drawing. Simulations of punch loads, principal stress distributions, principal strain distributions, cup height distributions, and the thickness distributions in the micro deep-drawing process on different tool size were achieved through the use of the explicit dynamic finite element program. In the discussion of size effect, this project combined the thickness and grain size into the stress-strain relation. A set of proper values was imported to predict the stress-strain curve by only one equation. The result showed that the difference between the original stress-strain relation and stress-strain relation combined with the thickness and grain size was within 5%.
關鍵字動顯函有限元素;微引伸;成形性;尺寸效應;Dynamic-explicit finite element;Micro deep-drawing;Formability;Size effect
語言中文
收錄於
會議性質國內
校內研討會地點
研討會時間20071123~20071123
通訊作者
國別中華民國
公開徵稿Y
出版型式紙本
出處機械固力學門成果發表會論文集13頁
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