Abstract
The aim of this paper was to study how ultrasonic vibrations during explosive welding influence the formation of the structure and properties of bimetal plate. The effect of changes in joint formation kinetics and in the structure and properties of the bimetal plate formed by explosive welding assisted by ultrasonic vibrations was determined. Ultrasound-assisted explosive welding resulted in improved strength and microhardness and decreased wave parameters and molten metal amount in the wave vortex areas compared to explosive welding without ultrasound. The influence of the propagation scheme, frequency and amplitude of the ultrasonic vibrations on the structure and property formation of the bimetal plate during explosive welding was demonstrated. The results of the influence of ultrasound on the weldable zone of dissimilar metals are discussed. Ultrasonic treatment of metal produces a decrease in yield stress, which results in modified metal surface layer properties and conditions for joint formation of collided plates during explosive welding.
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