Influence of Ultrasonic Vibration on the Electrophysical Properties of an Arc with a Nonconsumable Electrode

In this study, the influence of focused ultrasonic vibration in the arc column with a nonconsumable electrode on the electrophysical characteristics of the arc, near-electrode potential drops, and the shape and structure of the arc column discharge was investigated. It was determined that a focused ultrasonic field in the electrode region of the welding arc leads to an increase in the arc discharge voltage. The impact of a focused ultrasonic field reduces the arc diameter in the anode region and the column. In contrast, near the cathode region, the diameter increases, indicating a change in the nature of the cathodic flow of charged particles in this area.