Residual oscillation suppression via waveform optimization for stable electrohydrodynamic drop-on-demand printing
发布时间：2024-03-15
点击次数：
- 第一作者：
- Huayang Li
- 通讯作者：
- Yongqing Duan,Zhouping Yin
- 合写作者：
- Weili Yang,Wei Chen,Guannan Zhang,YongAn Huang
- 发表刊物：
- Additive Manufacturing
- 所属单位：
- State Key Laboratory of Digital Manufacturing Equipment and Technology
- 项目来源：
- National Natural Science Foundation of China (52075209), and the Key-Area Research and Development P
- 卷号：
- 55
- 页面范围：
- 102849
- 关键字：
- Electrohydrodynamic drop-on-demand printingWaveform optimizationResidual oscillationDamped oscillatorPrinting consistency
- DOI码：
- 10.1016/j.addma.2022.102849
- 发表时间：
- 2022-07-07
- 摘要：
- Electrohydrodynamic drop-on-demand (EHD DOD) printing is a promising additive manufacturing technique with both high resolution and good ink compatibility. However, it suffers from printing stability and uniformity due to the meniscus residual oscillation. Here we put forward an optimized waveform design by adding an additional voltage pulse when jetting stops and retracts to quickly eliminate the residual oscillation in EHD DOD printing. By utilizing a forced damped oscillator theoretical model, the characteristic duration time and demanded voltage value of the optimized waveform are determined. The correctness of theoretical result is proved by simulation and experiment. The proposed waveform design principle can almost completely eliminate the residual oscillation in EHD DOD printing. After optimization, the stable printing frequency achieved 1.92 times that of the unoptimized one, which promotes its application in high-resolution additive manufacturing process.