Jet-on-demand metal forming technique utilizing forced vibration of the jetting tube DOI

Guofang Hu,

Yanqing Zhang, Yanzhen Zhang

et al.

Physics of Fluids, Journal Year: 2025, Volume and Issue: 37(4)

Published: April 1, 2025

Current drop-on-demand metal jetting technologies provide precise control over the start and stop of jetting, as well exact number droplets ejected. However, these methods are generally constrained by low frequencies. Conversely, continuous can achieve significantly higher frequencies but lack capability to precisely regulate droplets. To address limitations existing droplet techniques, this study introduces a novel high-frequency jet-on-demand approach utilizing forced vibration jet tube. By inducing along axial direction tube, molten within tube is ejected at same frequency, facilitating efficient formation. The proposed method achieves times less than 9 ms, shorter those conventional continuous-flow techniques controlled back pressure. Furthermore, harmonic characteristics effectively eliminate residual oscillations from single excitations, enabling significant enhancement in frequency. Experimental results confirm that stable uniform be achieved across range frequencies, with reaching up 5 kHz. Forming experiments further validate superiority demonstrating forming efficiency producing components enhanced mechanical properties.

Language: Английский

High-frequency jetting through axial forced vibration of jet tube DOI
Yanqing Zhang,

Guofang Hu,

Boce Xue

et al.

Physics of Fluids, Journal Year: 2025, Volume and Issue: 37(1)

Published: Jan. 1, 2025

On-demand droplet jetting can be achieved through the axial reciprocating motion of jet tube, which is a novel technology. However, its feasibility for high-frequency has not been explored. In this study, it found that when driving signals are applied to piezoelectric ceramic, tube undergoes forced vibration, enables repeatable at frequencies up 10 kHz. This paper also investigates effects vibration amplitude and frequency on behavior reveals linear relationship between velocity amplitude.

Language: Английский

Citations

0
Jet-on-demand metal forming technique utilizing forced vibration of the jetting tube DOI

Guofang Hu,

Yanqing Zhang, Yanzhen Zhang

et al.

Physics of Fluids, Journal Year: 2025, Volume and Issue: 37(4)

Published: April 1, 2025

Current drop-on-demand metal jetting technologies provide precise control over the start and stop of jetting, as well exact number droplets ejected. However, these methods are generally constrained by low frequencies. Conversely, continuous can achieve significantly higher frequencies but lack capability to precisely regulate droplets. To address limitations existing droplet techniques, this study introduces a novel high-frequency jet-on-demand approach utilizing forced vibration jet tube. By inducing along axial direction tube, molten within tube is ejected at same frequency, facilitating efficient formation. The proposed method achieves times less than 9 ms, shorter those conventional continuous-flow techniques controlled back pressure. Furthermore, harmonic characteristics effectively eliminate residual oscillations from single excitations, enabling significant enhancement in frequency. Experimental results confirm that stable uniform be achieved across range frequencies, with reaching up 5 kHz. Forming experiments further validate superiority demonstrating forming efficiency producing components enhanced mechanical properties.

Language: Английский

Citations

0