与传统的改善结构疲劳性能的焊后处理措施相比，超声冲击处理是一种既高效又便捷的较为理想的工艺方法。
Ultrasonic impact treatment (UIT) is an effective and convenient method to enhance the fatigue strength of welded joints and suchlike structures.
纵向角接接头超声冲击处理试件与原始焊态试件相比，疲劳强度提高1 73 %左右，疲劳寿命延长了3 2～ 70倍。
The fatigue strength of the longitudinal fillet welded joint specimen treated by ultrasonic peening increases by about 173% and the fatigue lifetime prolonges by 32~70 times.
本文对超声冲击方法的实验装置进行了研究，研制成功了一台可以用于实际冲击处理的样机。
In this paper we have researched the ultrasonic peening equipment and a new ultrasonic peening prototype model was manufactured.
超声电源是进行超声冲击的能量供应和控制核心，因此它的性能好坏直接影响超声处理的质量。
Ultrasonic power supply is the power and control center of ultrasonic peening. Its performance directly affects the quality of ultrasonic peening.
TIG熔修处理工艺在焊趾区引入了残余拉应力，而超声冲击在焊趾区形成了较大数值的压缩应力。
Residual extend stress is produced at weld toe by TIG dressing, while compressing stress of high values by ultrasonic peening.
提出一种对接头焊趾先进行一遍tig熔修处理，然后再实施超声波冲击的复合处理新方法用来改善焊接接头的疲劳性能。
A new compound treating method of improving fatigue performance of high-strength welded joint is that firstly treated the welded toe by TIG-dressing and then performed ultrasonic peening.
提出一种对接头焊趾先进行一遍tig熔修处理，然后再实施超声波冲击的复合处理新方法用来改善焊接接头的疲劳性能。
A new compound treating method of improving fatigue performance of high-strength welded joint is that firstly treated the welded toe by TIG-dressing and then performed ultrasonic peening.
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