Review: The Metal Additive-Manufacturing Technology of the Ultrasonic-Assisted Wire-and-Arc Additive-Manufacturing Process

Ultrasonic-assisted wire–arc additive manufacturing (WAAM) can refine microstructures, enhancing performance and improving stress concentration anisotropy. It has important application prospects in aerospace, weaponry, energy, transportation, other frontier fields. However, the process parameters of ultrasonic treatment as an auxiliary technology WAAM still have impact on product indicators, such amplitude tool, distance between points action product, scanning speed. The number impacts influences indexes. Therefore, these must be optimized. This paper describes advantages defects components, well principle development status technology. Subsequently, this also briefly how ultrasonic-assisted crystal improve mechanical properties components. Finally, we review influence (such amplitude, direction, times) materials. In paper, a comprehensive optimization method for is proposed to