多次补焊工艺及其对高强钢焊接接头力学性能的影响

The Effect of Technology of Multiple Reparing Weld on Mechanical Property of High Strength Steel Weld Bead

研究了高强钢T型接头焊缝经多次补焊后材质的变化 ,以及多次补焊对焊接接头力学性能和接头应力集中系数的影响 ,通过力学及疲劳实验分析 ,得到多次补焊后的抗拉强度和应力集中系数 。

In this paper, the technological process of high strength steel T\|shape joint beads multiple repairing weld is studied. The effect of multiple repairing weld on mechanical property and the stress concentration of high strength steel weld joints used in platform have been investigated. According to analysis of mechanic and fatigue test, the tension strength and stress concentrations coefficient after multiple repairing welded is obtained. The work in this paper offers an important basis for platforms multiple repairing welded.