基于相同板厚工件的条件,利用有限元模拟软件Marc,综合考虑焊接热源、焊接与冷却时间等影响因素,建立了不同深度堆焊层焊接残余应力的有限元模型。利用盲孔法测量堆焊层中的残余应力值。有限元分析数据与试验的结果均表明焊接残余应力随着焊道深度增加而增加,且两者在趋势上吻合度较好。有限元模拟在提高参数精度的前提下,可指导堆焊残余应力的研究。 Based on the condition of the same plate thickness, finite element simulation software Marc was used to establish the finite element model of weld residual stress at different depths based on the factors of welding heat source, welding and cooling time. Measurement of residual stress in overlay by blind hole method. Finite element analysis data and experimental results show that the welding residual stress increases with the increase of weld bead depth, and the two are in good agreement with the trend. Finite element simulation in improving the accuracy of the premise, can guide the study of residual stress of surfacing.