坡口形状对430不锈钢焊接影响的数值模拟  

Numerical Simulation on Influence of Groove Shape on Welding of 430 Stainless Steel

作　　者：代雪佳[1] 凌泽民[1] 

机构地区：[1]重庆大学材料科学与工程学院,重庆400044

出　　处：《热加工工艺》2013年第19期197-199,共3页Hot Working Technology

摘　　要：以430不锈钢平板对接为研究对象,根据实际情况建立热-力学耦合的三维有限元模型,并运用SYSWELD有限元分析软件对工件不同形状坡口的焊接过程温度场、变形和焊缝残余应力进行数值模拟与分析。结果表明,坡口形状对430不锈钢变形及焊缝区残余应力有较大影响。According to practical situation, three-dimensional thermal-mechanical finite element model was established based on the butt joint of 430 stainless steel. The SYSWELD software was used to analyze the effects of weld groove shape on the temperature field during welding process, deformation and welding residual stress. The results show that the weld groove shape may have significant effects on the deformation and residual stress in weld bead.

关 键 词：不锈钢 坡口 残余应力 数值模拟 

分 类 号：TG404[金属学及工艺—焊接]