Transactions of Materials and Heat Treatment

Title：FEM analysis of large elasto-plastic deformation for fine-blanking with negative clearance

Authors： LI Jian-hua ZHANG Zhong-mei(Mechanical and Electronic School Zhongyuan University of Technology Zhengzhou 450007 China)

Unit：

KeyWords： negative clearance elasto-plastic FEM fine-blanking ductile fracture

ClassificationCode：TG386.2

year,vol(issue):pagenumber：2008,33(5):167-170

Abstract：

Fine-blanking with negative clearance is a complex mechanics process,it relates to the phenomena of elastic deformation,plastic deformation,damnification inteneratation,ductile fracture and so on.By using DEFORM-2D software and McClintock ductile fracture criteria,the process simulation for AISI-1045 steel was done with large deformation elasto-plastic FEM.The distributions and developing trends of static hydraulic pressure,equivalent stress,and equivalent strain were predicted.According to the analysis of the simulative conditions and the simulative results,the no burr specimens with the different negative clearances were obtained by the way of experiment.

Funds：

河南省科技厅基础研究项目(0311051000)

Reference：

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