摘要
对薄壁不锈钢管环压接头的管坯成形进行了研究,用Ansys有限元分析软件LS-DYNA模块模拟分析了管坯在成形过程中轴向收缩和径向回弹所引起尺寸的变化,对模拟结果与实验数据进行了对比分析。结果表明,管坯在成形过程中发生显著的轴向收缩,收缩尺寸为28.52 mm,轴向尺寸补偿后,管坯最优截取长度为128.52 mm。管坯成形后在径向和轴向发生回弹,其中径向最大回弹尺寸出现在承口起包处,尺寸大小为0.34 mm,管坯其余管身的回弹尺寸为0.25 mm,需要补偿相应的尺寸。
The tube blank forming of thin-wall stainless steel tube ring joint was studied. The size change caused by axial shrinkage and radial springback during tube forming was simulated and analyzed by using the LS-DYNA module of Ansys finite element analysis software. The simulation results were compared with the experimental data. The results show that the tube blank has significant axial shrinkage during forming process, the shrinkage size is 28.52 mm, the optimal interception length of the tube blank is 128.52 mm after the axial size compensation. The springback occurs in the radial and axial direction after tube blank forming, in which the maximum radial springback size appears at the mouth of the socket, the dimension is 0.34 mm, and the springback dimension of the remaining part of the tube blank is 0.25 mm, and the corresponding size shall be compensated.
出处
《热加工工艺》
CSCD
北大核心
2017年第13期173-175,179,共4页
Hot Working Technology
关键词
薄壁不锈钢管
管坯
ANSYS软件
轴向收缩
径向回弹
thin-wall stainless steel tube
tube blank
Ansys software
axial shrinkage
radial springback
