考虑焊缝性能的冷轧过程有限元仿真分析

焊缝区材料与基材的力学性能通常存在一定差异,这种力学性能的差异会影响冷轧过程,造成轧制力的变化。采用有限元软件ANSYS LS-dyna,就焊缝对冷轧过程的影响进行了仿真分析。结果表明,与带钢基体相比,焊缝区残余应力、应变以及轧制力都产生不同程度的突变。

Finite element analysis and simulation of cold rolling process considering the weld performance

Owing to the existence of differences in mechanical performance between basis material and welding metarial,cold rolling process can be influenced by the differences,which result in the change of rollling force.In order to simulate the effect of weld seam on the cold rolling process,FEM software ANSYS Ls-dyna was adopted.The results indicated that,compared with the basis material,obvious changes of some parameters were obseved in the welded zone,including residual stress,strain and rolling force.The research gives some advice to improve cold rolling and welding processes.