【摘要】 以雷达微波壳体为研究对象,采用刚粘塑性有限元法对其等温挤压过程进行了数值模拟,获得了成形过程中金属流动规律和应力分布状态,预测成形过程中可能存在的缺陷。在此基础上,通过数值模拟分析得到了优化的毛坯形状。通过与实验结果对比,模拟结果和实验结果一致,进一步验证数值模拟结果的可靠性与有效性。更多还原

【Abstract】 The characteristics of isothermal extrusion process for microwave box was analyzed,and the deformable process of different roughcast was analyzed by numerical simulation with rigid-plastic finite element method,the process of metal flow and stress distribution were analyzed,the defects were predicted by the simulation.In the end,through contrasts simulation and experiment,numerical simulation result is reliable;the design of roughcast and mould can be optimized by numerical simulation.更多还原