矩形薄壁金属管冷绕弯成型分析及改进设计

Analysis and improved design of cold bending process for rectangle thin-wall metal tube

制造业轻量化技术的发展,使矩形薄壁金属管材得到了更多应用。本文借助有限元分析软件,仿真矩形大口径薄壁管绕弯成型过程,并提出一种新型的基于阿基米德螺线的芯头结构设计,来提高弯管成型质量。仿真分析表明其对改善截面畸变效果显著。对丰富管件绕弯成型方式、提高弯管质量具有重要意义。

The cold bending process for rectangle big-diameter thin-wall tube has been simulated in the text by use of finite element analysis software. A new structure design of core head on the basis of Archimedes spiral has been put forward in order to improve the bending quality. The simulation analysis shows that it has remarkable effect for improving section distortion. It has important meaning for enriching bending modes of tube and improving the bending quality.