基于网络的塑性成形物理模拟系统的构建

提出基于网络的塑性成形模拟系统方案,将网络信息传递快捷、直观的特点同塑性成形模拟技术的科学预测作用结合起来,改善目前塑性加工生产中存在的信息交流方式落后、生产周期长、适应性差、不能满足现代生产和市场需要等问题.构建的系统方案应用到发动机连杆锻造过程中.应用物理模拟技术研究连杆、曲轴等锻件的成形过程,揭示出锻造过程中坯料的流动和充填情况;测定成形力、错移力等重要工艺参数,为合理制定锻造工艺方案和设计可靠的模具结构提供了有力的保障,实现了设计、制造和模拟仿真等部门之间信息和图像的快捷传递.

ESTABLISHMENT OF PHYSICAL SIMULATION SYSTEM BASED ON NETWORK FOR PLASTICITY PROCESSING

The simulation system of plasticity processing based on network is presented.This system aims at combining the network technology with the way of simulation of the plasticity forming process,because plasticity processing needs to deliver design data and information quickly via network and use the way of simulation to optimize the manufacturing technique.The system is applied to optimize the forging tech- nique of connecting-rod and crankshaft.The manufacture information and images are delivered rapidly.The processing technique is optimized by means of physical simulation;The phenomena of material flowing and filling behavior within the mould are analyzed.At the same time some important pa- rameters such as deforming stress and side-shifting stress are determined.Some conclusions can uncover the principles of disfigurement in forging,and can be used to program appro- priate forging technique and to design reasonable mould structure.The practice proves that the simulation system of plasticity processing based on network is feasible and valuable.