基于超声波调控的残余应力分析  

Analysis of Residual Stress with Ultrasonic Impact

作　　者：侯雪佳[1] 郭崇[1] 朴香艳[1] 王学良[1] 任军庆[1] 孙赐杰[1] 卢庆华[1] 

机构地区：[1]上海工程技术大学材料工程学院,上海201620

出　　处：《上海工程技术大学学报》2013年第1期66-69,共4页Journal of Shanghai University of Engineering Science

基　　金：上海市重点学科建设资助项目(J51402);上海工程技术大学大学生创新活动计划资助项目(CS1105006)

摘　　要：利用盲孔法测量不同焊接材料在有、无焊后消应力处理的表面堆焊焊缝残余应力,并对不同材料的堆焊试板进行焊后应力测试.结果表明:不锈钢堆焊试板的焊接残余应力大于碳钢堆焊试板的残余应力;不锈钢焊接材料堆焊试板经超声波消应力后残余应力有所下降;碳钢堆焊试板消应力效果更为突出,消应力后的平均最大残余主应力较消应力前下降了80%.Based on blind hole method, the residual stress of multi-pass lap surfacing with and without stress relaxation was measured, lap surfacing test panels of different welding materials were compared. The results show that the residual stress of stainless steel panel is higher than that of carbon steel panel. The stress of stainless steel panel can be decreased after stress relaxation by ultransonic impact, the stress relaxation effect of carbon steel is better, the average maximum principal stress after stress relaxation is decreased by 80%.

关 键 词：多道堆焊 盲孔法 消应力 

分 类 号：TG404[金属学及工艺—焊接]