摘要
通过ABAQUS有限元显/隐式方法模拟研究了不同芯棒和压块参数下回弹对TA18高强钛管壁厚减薄及截面畸变的影响。结果表明:在不同的工艺参数下TA18高强钛管卸载回弹后,壁厚减薄率与回弹前的相对差均小于10%;但截面畸变率与回弹前的相对差除极个别测量点外,均大于35%,甚至超过60%,且回弹后截面畸变率稳定变形区的"平台"现象消失。
The influence of the springback in high strength TAI 8 tubes on the wall thinning and section distortion under different process parameters was investigated using ABAQUS Explicit/Standard finite element models. The results show that the wall thinning ratios after unloading-springback are less than 10% under different process parameters for high strength TA18 tubes, while the section distortion ratios after springback are more than 35%, even 60% except a few measured points. The ＂platform＂ of section distortion ratio at stable forming zone disappears after springback.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2012年第7期1221-1225,共5页
Rare Metal Materials and Engineering
基金
凝固技术国家重点实验室自主研究课题(0400-N8QT0219)
材料成形与模具技术国家重点实验室开放课题研究基金(09-10)
西北工业大学基础研究基金(JC201028)
