针对D406A低合金高强钢薄板的焊后残余应力过大、尺寸稳定性较差问题,本文引入振动时效(VSR)技术代替传统的热时效处理工艺对该焊板激振处理。结果表明,与热时效相比,VSR工艺不仅可显著降低焊后残余应力水平,并可显著均化焊接残余应力的分布状态,从而改善并强化构件的尺寸稳定性。 Aiming at the problem of excessive residual stress and poor dimensional stability of D406A low-alloy high-strength steel sheet after welding, VSR technology is introduced to replace the traditional thermal aging process to stimulate the welding plate. The results show that compared with thermal aging, the VSR process can not only significantly reduce the post-weld residual stress level, but also significantly reduce the distribution of welding residual stress, so as to improve and enhance the dimensional stability of the component.