本文应用自己设计的特殊应力框架装置,测示研究了爆炸消除焊接残余应力过程中金属的塑性形变规律。发现爆炸过程中金属所发生的塑性应变(ε_p)与金属内部初始存在的残余弹性应变(ε_e)的关系为:ε_p=ε_e+C,对于一定的爆炸条件C为常数。据此,我们建立了残余应力诱导塑性形变的爆炸消除焊接残余应力机制。 In this paper, a special stress frame device designed by ourselves was used to study the plastic deformation law of metal during the process of explosion elimination and welding residual stress. It is found that the relationship between the plastic strain (ε_p) and the initial residual elastic strain (ε_e) in the metal during explosion is ε_p = ε_e + C, which is constant for certain explosion conditions. Based on this, we establish a residual stress-induced plastic deformation of the explosion elimination welding residual stress mechanism.