薄壁管件被动液压成形工艺仿真分析  

Simulation Analysis on Passive-hydroforming Process for Thin-walled Tube

作　　者：柳波[1] 高宇[1] 王浩[1] 

机构地区：[1]中南大学机电工程学院,湖南长沙410083

出　　处：《热加工工艺》2012年第3期70-72,75,共4页Hot Working Technology

摘　　要：介绍了薄壁管件被动液压成形的基本原理及其特点;基于LS-DYNA动力显式有限元分析软件Dynaform5.6,对薄壁管被动液压成形进行了模拟仿真,针对成形过程中的轴向进给予内压力匹配关系以及轴向力与内压力的应力比取值区间展开研究,得到不同工艺参数下薄壁管件被动液压成形工艺的成形性能参数表,并对仿真结果进行了分析。The principles and characteristics of passive-hydroforming process for thin-walled tube was introduced.Based on LS-DYNA finite element software Dynaform5.6,the thin-walled tube passive-hydroforming was simulated,the axial feeding and pressure match relation of forming process and the stress range of axial force and internal pressure was researched,the formability parameters of thin-walled tube passive-hydroforming process with different process parameter was obtained,and the simulation results was analyzed.

关 键 词：薄壁管件 被动液压成形 加载路径 成形性能 

分 类 号：TG394[金属学及工艺—金属压力加工]