Effect of surface treatment on vibration energy transfer of ultrasonic sonotrode

TL;DR

This study investigates how surface treatments like ion nitriding and vacuum carburizing affect the vibration energy transfer of ultrasonic sonotrodes, combining finite element analysis and cavitation experiments to understand their impact.

Contribution

It provides new insights into how surface treatments influence ultrasonic vibration transmission and cavitation effects in aluminum casting systems.

Findings

Surface treatment weakens vibration response of the radiating rod.

Reduces the longitudinal amplitude of the radiating rod.

Decreases sound pressure amplitude transmitted into aluminum melt.

Abstract

In this paper, two kinds of ultrasonic radiation rod with surface treatment (ion nitriding and vacuum carburizing) are selected to carry out finite element analysis on ultrasonic vibration system and casting system, and explore the influence of surface treatment on vibration energy transmission of radiation rod. The cavitation field of radiation rod with different surface treatment in water was obtained through the cavitation erosion area of aluminum foil in water by using the aluminum foil cavitation experiment, so as to verify the simulation results of sound pressure field in aluminum melt. The results show that the surface treatment weakens the vibration response of the radiating rod, reduces the longitudinal amplitude of the radiating rod, and reduces the amplitude of sound pressure transmitted into the aluminum melt.