關鍵字查詢 | 類別:會議論文 | | 關鍵字:Analysis of Forming Limits in Metal Forming Processes

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1 96/1 機電系 李經綸 副教授 會議論文 發佈 Analysis of Forming Limits in Metal Forming Processes , [96-1] :Analysis of Forming Limits in Metal Forming Processes會議論文Analysis of Forming Limits in Metal Forming ProcessesLi, Ching-Lun; Huang, You-Min; Tsai, Yi-Wei淡江大學機械與機電工程學系HOLE-FLANGING PROCESS; FORMABILITY; LIMITATION; SIMULATIONDaejeon: The Korea Advanced Institute of Science and TechnologyProceedings of the 10th International Conference on Advances in Materials and Processing Technologies (AMPT2007), 5p.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
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