中文摘要：

随着超声技术和设备的发展,功率超声被越来越多应用于焊接领域。本文主要介绍了功率超声在电弧焊接领域中的应用,分析了超声波的主要作用,介绍了各焊接方法的特点以及未来的发展前景。

英文摘要：

With the development of ultrasonic technology and equipment, the power ultrasonic was more and more introduced into the welding process. The application of ultrasonic in the arc welding was introduced, and the characteristics about these method were analyzed. The effection of ultrasonic wave and the develop ment prospects in the future were introduced.