模芯角度对镁合金管材静液挤压的影响（英文）  

Effects of Mandrel Angle on Hydrostatic Extrusion Process of Magnesium Alloy Tube

作　　者：赵孟军[1] 吴志林[1] 蔡红明[1] 

机构地区：[1]南京理工大学,江苏南京210094

出　　处：《稀有金属材料与工程》2017年第5期1214-1218,共5页Rare Metal Materials and Engineering

基　　金：National Science and Technology Major Project(2012ZX04010101)

摘　　要：通过DEFORM-3D软件模拟了不同的挤压速度与初始坯料温度条件下,模芯的角度(90°,120°,150°)对管材静液挤压成形过程的影响。模拟结果显示,静液挤压过程中大角度模芯的压力峰值明显高于小角度模芯的压力峰值,同时随着模芯角度的增大管材的速度场分布不均性增加。The hydrostatic extrusion process of magnesium alloy AZ80 tube with different mandrel angles （90°, 120°, 150°） was simulated by the DEFORM-3D software with different extrusion speeds and initial billet temperatures. The simulated results show that the peak load of the extrusion process with big mandrel angle is obviously higher than that of the small angle and the inhomogeneity of billet velocity field is intensified with the increase of the mandrel angle.

关 键 词：静液挤压 AZ80 模芯角度 

分 类 号：TG379[金属学及工艺—金属压力加工]