Analysis of Forming Limits in Metal Forming Processes
學年 96
學期 1
發表日期 2007-10-07
作品名稱 Analysis of Forming Limits in Metal Forming Processes
作品名稱（其他語言）
著者 Li, Ching-Lun; Huang, You-Min; Tsai, Yi-Wei
作品所屬單位 淡江大學機械與機電工程學系
出版者 Daejeon: The Korea Advanced Institute of Science and Technology
會議名稱 10th International Conference on Advances in Materials and Processing Technologies (AMPT2007)
會議地點 Daejeon, KOREA
摘要 Forming limit plays a very important role in metal forming processes since it can be used to predict whether a blank will fracture or not. This paper examines the influence on forming limit of blank and fractured thickness. The fractured thickness of a specimen in the simple tension test is adopted as the fracture criterion of the forming limit, and is applied as fracture criterion in the FEM code. The model was based on the updated Lagrangian formulation, Prandtl-Reuss flow rule, and Hill's yield criterion. in the course of analysis, if blank thickness is equal to fractured thickness, it is considered that the forming limit of the blank has been reached. This paper has analyzed the square cup drawing process and the elliptical hole-flanging process, and calculated the forming limit ratio for each process. In addition, tools were designed to perform experiments for each process. Simulations and experiments were performed with varying processes and consistent results were obtained.
關鍵字 HOLE-FLANGING PROCESS; FORMABILITY; LIMITATION; SIMULATION
語言
收錄於
會議性質 國際
校內研討會地點
研討會時間 20071007~20071011
通訊作者
國別 KOR
公開徵稿 Y
出版型式
出處 Proceedings of the 10th International Conference on Advances in Materials and Processing Technologies (AMPT2007), 5p.
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