Wetting and Spreading Behaviors of Impacting Metal Droplet Regulated by 2D Ultrasonic Field.

ABSTRACT: The wetting and spreading behaviors of metal droplets on solid substrates are critical aspects of additive manufacturing. However, the inherent characteristics of metal droplets, including high surface tension, elevated viscosity, and extreme temperatures, pose significant challenges for wetting and spreading on nonwetting substrates. Herein, this work proposes a strategy that employs a two-dimensional (2D) orthogonal ultrasonic field to construct a vibration deposition substrate with radial vibration amplitude gradient, thereby enhancing the wettability and adhesive strength of impacting metal droplets ejected by a piezoelectric micro-jet device. First, a 2D ultrasonic vibration device is designed based on the combination of longitudinal vibration modes. Additionally, oblique and circular

SUBMITTER: Zhao Y 

PROVIDER: S-EPMC11923880 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature