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.
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