复杂多腔体铝合金型材挤压模具设计及挤压过程数值模拟研究  

Design of Extrusion Die and Research on Numerical Simulation of Extrusion Process for the Complex Multi-cavity Aluminum Alloy Profiles

作　　者：王胜龙 秦中环 周小京 刘建峰[2] 张海超[2] 郭晓琳[1] 李保永[1] 王志敏[1] Wang Shenglong;Qin Zhonghuan;Zhou Xiaojing;Liu Jianfeng;Zhang Haichao;Guo Xiaolin;Li Baoyong;Wang Zhimin(Beijing Hangxing Machinery Manufacture Limited Corporation,Beijing 100013;Shandong University,Jinan 250014)

机构地区：[1]北京航星机器制造有限公司,北京100013 [2]山东大学,济南250014

出　　处：《航天制造技术》2021年第5期1-5,18,共6页Aerospace Manufacturing Technology

基　　金：国防基础科研计划资助项目(JCKY2018204B034)。

摘　　要：综合考虑分流比、分流孔、分流桥、模芯、焊合室、模孔等分流挤压模具的关键结构特征及参数,设计了航天器复杂多腔体铝合金型材的分流组合挤压模具结构,并利用三维建模软件绘制了模具的三维几何模型。在HyperXtrude软件中构建了该型材挤压的有限元模型,导入绘制的分流组合挤压模三维模型,模拟仿真该型材的挤压过程。结果显示,该型材挤压速度、温度、应变和晶粒尺寸分布都比较均匀,说明设计的模具合理可行。The split-flow combined extrusion die of a complex multi-cavity aluminum alloy profile for spacecraft is designed considering the key characteristics and parameters of the die such as split ratio,split hole,split bridge,die core,welding chamber,and die hole.The three-dimensional geometric model of the die is drawn using three-dimensional modeling software.A finite element numerical simulation extrusion model was constructed in the HyperXtrude software,and the designed die is used to numerically simulate the extrusion process of the profile.The simulation results show that the distributions of the profile extrusion speed,temperature,strain and grain size are relatively uniform,indicating that the designed die for the profile in this study is reasonable and feasible.

关 键 词：模具设计 分流挤压 复杂多腔体型材 数值模拟 

分 类 号：TG376.2[金属学及工艺—金属压力加工]