此文提出了适用于金属体积成形过程有限元模拟的约束处理算法。
A new method for the treatment of constraints in finite element simulation of metal forming is put forward.
运用一种基于全量理论的多步有限元方法计算分析了金属体积成形过程。
The bulk metal forming processes are calculated and analyzed by using a multi - step finite element method (FEM) based on deformation theory of plasticity.
运用一种基于全量理论的多步有限元方法计算分析了金属体积成形过程。
The Research on Adaptive Reproducing Kernel Particle Method in the Metal Forming Process;
金属体积成形预成形设计，是材料多工序成形工艺与模具设计的中心工作。
Preform design in bulk metal forming is the central task of bulk metal forming process and die design.
提出了解决目前问题的方法，并针对现状，提出了金属体积成形的虚拟试验体系模型；
Solutions to present problems and the model of metallic bulk forming virtual trial system are suggested;
并以筒形机匣精锻成形为例对金属体积形成过程进行了模拟，计算结果表明所提出的方法和软件系统是可靠的。
Meanwhile the processes of cylindrical housing have been simulated by the system, which indicate that the given techniques and software are feasible.
研究金属塑性成形规律的理论方法现在有主应力法、上限法、滑移线法、有限元法和有限体积法。
The basic theoretical methods such as Slab method, UBET, Slip Line method, FEM, and FVM have been used in the research of metal plastic forming technology.
一般认为将机械振动引入到金属的塑性成形加工中，不但可以降低材料变形时所需的外力，还能大幅度提高产品成形质量，这些效果的产生主要缘于体积效应的影响。
Volume effect is in the case of the plastic processing system with vibration, under this process the deformation resistance force of materials is reduced, and the deformation rate is risen.
一般认为将机械振动引入到金属的塑性成形加工中，不但可以降低材料变形时所需的外力，还能大幅度提高产品成形质量，这些效果的产生主要缘于体积效应的影响。
Volume effect is in the case of the plastic processing system with vibration, under this process the deformation resistance force of materials is reduced, and the deformation rate is risen.
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