振动时效在HT-7U核聚变真空装置残余应力消除中的应用  

Application of VSR in relieving residual stress of the HT- 7U nucleus fusion vacumm device

作　　者：尹何迟[1] 刘龙飞[1] 陈立功[2] 倪纯珍[2] 

机构地区：[1]湖南科技大学机电学院,湖南湘潭411201 [2]上海交通大学焊接所,上海200030

出　　处：《湖南科技大学学报（自然科学版）》2010年第2期17-19,共3页Journal of Hunan University of Science And Technology：Natural Science Edition

基　　金：国家自然科学基金资助项目(50801026)

摘　　要：针对HT-7U核聚变真空装置拼焊过程中产生的焊接变形,通过应用振动时效(Vibratory Stress Relief,VSR)工艺,以消除拼焊处残余应力.介绍了盲孔法测量残余应力的原理,并通过振动过程中动应力分析和VSR工艺前后残余应力的测量,了解拼焊处动应力和残余应力的分布状况,实验结果表明VSR工艺消应力效果良好.Aiming at the deformation in the welding of the vacumm device,residual stresses were eliminated in the welding place by Vibratory Stress Relief（VSR）process.It did the analyse of dynamic stress and the measurement of residual stresses before and after the VSR process,and knew the reduction and redistribution of residual stresses.The experiment results showthat the VSR process is effective.

关 键 词：振动时效 残余应力 动应力 焊接变形 真空装置 

分 类 号：TG404[金属学及工艺—焊接]