铝型材宽展挤压模具设计及数值模拟  

Design and Numerical Simulation of Expanding Extrusion Die for Aluminum Alloy Profiles

作　　者：王岩[1] 王孟君[1] 周漪[1] 陈新欢 袁玉宝 潘学著 WANG Yan;YUAN Yu-bao;PAN Xue-zhu;WANG Meng-jun;ZHOU Yi;CHEN Xin-huan(Key Laboratory of Nonferrous Metal Materials Science and Engineering of Ministry of Education,Central South University, Changsha 410083;Guangya Aluminum Co., Ltd., Foshan 528237, China)

机构地区：[1]中南大学有色金属材料科学与工程教育部重点实验室,湖南长沙410083 [2]广亚铝业有限公司,广东佛山528237

出　　处：《铝加工》2017年第3期4-8,共5页Aluminium Fabrication

基　　金：佛山市科技创新平台建设专项资金(2013GQ100082);"十三五"国家重点研发计划(2016YFB0300901)

摘　　要：针对"鱼"形空心型材的宽展挤压模具设计,分析了多级宽展和宽展角度对金属速度场、温度场、应力应变场、模具受力及焊合力等情况的影响。研究结果表明,采用递减型二次宽展模具金属流速均匀,模具变形较小,焊合质量好,挤出型材无弯曲、扭拧等缺陷。In view of the design of expanding extrusion die for hollow profiles with"fish"shape,the influence of multistage expand?ing and expanding angle on velocity field,temperature field,stress and strain field,die force and welding force were analyzed.The re?sults show that the metallic flow rate is more uniform and die's deformation becomes smaller,welding is qualified and extrusion pro?files is not bended and twisted when using decreasing two-times expanding die.

关 键 词：铝型材 挤压模具 多级宽展 宽展角 

分 类 号：TG375.41[金属学及工艺—金属压力加工]