高速列车用铝型材精整工艺参数的研究  

Study on finishing process parameters of high-speed train aluminum profile

作　　者：吴雨兰 郝建军[1] 黄庆学[2] 

机构地区：[1]太原科技大学机械工程学院,山西太原030024 [2]太原科技大学重型机械教育部工程研究中心,山西太原030024

出　　处：《重型机械》2014年第5期29-32,共4页Heavy Machinery

摘　　要：介绍了高速列车用铝型材的精整过程,运用Ansys有限元分析软件,建立该铝型材精整过程的有限元模型,分析了铝型材精整过程中的应力、应变、压下位移等的变化规律。当t=6 s时,应力值开始达到铝型材的屈服极限σs,之后开始进入塑性变形;当t>12 s时,应力超过了铝型材的强度极限,压下行程大于10 mm,型材发生破坏性的塑性变形。该研究为优化异型截面型材的精整工艺提供了理论参考。This paper introduces finishing process for high-speed train aluminum profile. Finite element model of the finishing is established based on Ansys. The changes of aluminum profile stress, strain and pressure displacement in finishing are analyzed. When t = 6 s, aluminum stress value just reach to it＇s σs, after get into the plastic deformation; When t 〉 12 s, the stress passes it＇s ultimate strength, and then rolling reduction is more than 10 mm, the profile is in a destructive plastic deformation. The study provides a theoretical reference for optimizing finishing process of aluminum profile.

关 键 词：异形截面型材精整机 精整压下行程 高铁车辆用铝型材 

分 类 号：TG333.4[金属学及工艺—金属压力加工]