浅析搅拌摩擦焊残余应力

讨论了搅拌摩擦焊残余应力的产生原因,在已有的试验结果的基础上对残余应力的分布和规律进行了概述。并且以钨极氩弧焊(TIG)为例,将搅拌摩擦焊与传统熔焊的残余应力分布进行了对比,进一步肯定了搅拌摩擦焊在铝合金焊接时的优越性。同时还介绍了对搅拌摩擦焊残余应力的控制方法及其效果,最后对有关搅拌摩擦焊的残余应力的研究工作做出了展望。

Brief Analysis on Residual Stress of Friction Stir Welding

The generating reasons of the residual stress in the process of FSW is briefly analyzed and the distribution and laws of residual stress are summarized on the basis of existing test results.The comparison of residual stress between friction stir welding and traditional fusion welding is done by using the example of TIG,it is proven that the advantages of FSW in the process of aluminum welding is obvious.Further more,the control methods of residual stress of the friction stir welding process and its effect are introduced,finally,the prospects for research work that connection with residual stress of friction stir welding are presented.