金属三维挤压成形过程数值模拟的 关键字: 挤压工艺； 数值模拟； 三维刚塑性有限元法[gap=860]Key words: extrusion; numerical simulation; 3-D rigid-plastic finite element formulations
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它耦合了三维刚塑性有限元法，弹性有限元法和计算辊系变形的影响函数方法。
Three-dimensional rigid-plastic finite elements, elastic finite elements and influential function method for the analysis of deformation of rolls system are combined.
采用三维刚塑性有限元法对四种径向精锻变形道次的变形分布进行了数值模拟计算；
The strain distributions of four kinds of radial forging processes have been simulated by rigid-plastic FEM.
为了验证新模型，进行了棒材轧制试验并且利用三维刚塑性有限元法对轧制过程进行了模拟。
The validity of the new model was examined by the bar rolling experiment and the 3D rigid-plastic FEM simulation.
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