复杂截面空心铝型材挤压过程数值模拟  

Numerical simulation of extrusion process for complex section hollow aluminum profile

作　　者：徐晨 陈文琳[1] 潘琪琛 周晓远 阮祥明 XU Chen;CHEN Wen-lin;PAN Qi-chen;ZHOU Xiao-yuan;RUAN Xiang-ming(School of Material Science and Engineering,Hefei University of Technology,Hefei,Anhui 230009,China;Anhui Shengxin New Materials Co.,Ltd.,Xuancheng,Anhui 242000,China)

机构地区：[1]合肥工业大学材料科学与工程学院,安徽合肥230009 [2]安徽生信新材料股份有限公司,安徽宣城242000

出　　处：《模具工业》2020年第6期53-57,共5页Die & Mould Industry

基　　金：安徽省2018重点研究与开发计划项目(1804a09020073)。

摘　　要：以某建筑用复杂截面空心铝型材为研究对象,进行连续挤压成形模设计。利用仿真模拟技术获得挤压过程中金属的流动变形情况,根据分析结果,提出了改进工作带及分流孔形状尺寸的方案。模具结构经过改进后,型材出口处金属流速均匀,数值模拟与试模结果吻合,为模具设计提供了理论指导,减少了试模成本。Taking a complex section hollow aluminum profile for buildings as the research object,the continuous extrusion die design was carried out.The instantaneous state of flow deformation of metal during extrusion was obtained by numerical simulation.Accord⁃ing to the simulation results,the shape and size of the working belt and the split hole were improved.After the die structure improved,the metal flow rate at the exit of the pro⁃file was uniform.The numerical simulation was consistent with the test results,which pro⁃vided theoretical guidance for die design and reduced the cost of debugging.

关 键 词：空心铝型材 挤压 数值模拟 模具结构 

分 类 号：TG376.1[金属学及工艺—金属压力加工]