Transactions of Materials and Heat Treatment

Title：Three dimensional rigid plastic FEM simulation of backward extrusion & application of local mesh densification

Authors： Shanghai Jiaotong University Chen Jun Ruan Xueyu

Unit：

KeyWords： Backward extrusion Rigid plastic FEM Numerical simulation Local mesh densification

ClassificationCode：TG37,TG37

year,vol(issue):pagenumber：1998,23(1):0-0

Abstract：

This paper has simulated the square billet's backward extrusion process by using the general 3 D rigid plastic/rigid viscoplastic FEM simulation system SimuⅢ developed by ourselves, and analyzed the material flowing pattern and the error because of the incorrect mesh discretion, furthermore, the paper proposes the method of local mesh densification to simulate the forming process more precisely. Finally, the simulating results fit well with the reference's numerical results and the correspondingly experimental results.

Funds：

Reference：

1DYYang，NKLe，JHYon．Athre－dimensionalrigid－plasticfiniteelementanalysisofspurgearforgingusingthemodularremeshingtechniques．Proc．Instn．Mech．Engrs，Vol．205，1991，p111－1212JuipengTang，WTWu，JohnWalters．Recentdevel－opmentandapplicationoffiniteelementmethodinmetalform－ing．J．Mater．Proces．Technol．46（1994），p117－1263YTronelandJLChenot．Predictionoftolwearus－ingfiniteelementsoftwareforthethre－dimensionalsimulationofthehotforgingproces．J．Mater．Proces．Technol．31（1992），p255－2634陈军．虚拟模具制造及其金属成形过程三维仿真技术研究．上海交通大学博士学位论文，1996．5NKLe，JHYoonandDYYang．Finiteelementanalysisoflargedeformationbyautomaticrenodingasaweak－ingremeshingtechnique，Int．J．Mech．Sci，Vol，34，No．4，1992，p255－2736SKobayashi，SIOhandTAltan．MetalFormingandtheFiniteElementMethod．OxfordUniversityPres，NewYork，USA，1989．

Service：

【This site has not yet opened Download Service】【Add Favorite】