4Cr9Si2 Martensitic heat-resistant steel is inlet valve and the exhaust tappet materials. This paper is based on the constitutive relationship of 4Cr9Si2 Martensitic heat-resistant steel obtained by isothermal compres...
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4Cr9Si2 Martensitic heat-resistant steel is inlet valve and the exhaust tappet materials. This paper is based on the constitutive relationship of 4Cr9Si2 Martensitic heat-resistant steel obtained by isothermal compression;a finite element model of Cross Wedge Rolling was build up for 4Cr9Si2 Martensitic heat-resistant steel.In the model the heat conduction between billet and the die,the convection of heat transfer,and the thermal conversion of plastic work and friction work were taken in account,the value of damage was obtained in the rolling and central porosity was analysis.Then verify the correctness of the FEM and feasibility of simulation results by the experiment.
<正>In this paper, the cross wedge rolling (CWR) process has been studied with the aid of 3-dimension rigid-plastic and thermo-mechanical couple FEM. On the plalform of the general non-linearity FEM software DEKOR...
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<正>In this paper, the cross wedge rolling (CWR) process has been studied with the aid of 3-dimension rigid-plastic and thermo-mechanical couple FEM. On the plalform of the general non-linearity FEM software DEKORM-3D, 3-dimension rigid-plastic and thermo-mechanical finite element model has been established. Temperature variation of workpiece is analyzed during the rolling process in detail. It also shows the distributions of stress field in the different directions.
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