舒霞云,陈赛,张晓城,等.双鞘气聚焦溶液气溶胶喷印装置设计及实验[J].精密成形工程,2025,17(3):216-228.
SHU Xiayun,CHEN Sai,ZHANG Xiaocheng,et al.Design and Experiment of Dual-sheath Gas-assisted Focusing Solution Aerosol Jet Printing Device[J].Journal of Netshape Forming Engineering,2025,17(3):216-228. |
| 双鞘气聚焦溶液气溶胶喷印装置设计及实验 |
| Design and Experiment of Dual-sheath Gas-assisted Focusing Solution Aerosol Jet Printing Device |
| 投稿时间：2024-07-03 |
| DOI：10.3969/j.issn.1674-6457.2025.03.024 |
| 中文关键词: 气溶胶喷印 双鞘气聚焦 线条形貌 微纳增材制造 成形因素 |
| 英文关键词: aerosol jet printing dual-sheath gas structure morphology of printed lines micro nano additive manufacturing forming factor |
| 基金项目:国家自然科学基金(51975501);福建省自然科学基金(2022J011243) |
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| 中文摘要: |
| 目的 探究气溶胶喷印最佳成形参数并进一步提升喷印精度。方法 首先，通过对气溶胶喷印头内流道模型进行建模，分析喷印头结构参数鞘气层锥角对喷印聚焦效果的影响。其次，借助仿真和实验，探究载气流量、一次聚焦比、二次聚焦比3种工艺参数对喷印聚焦效果、喷印线条形貌的影响。结果 仿真计算结果表明，当一次聚焦鞘气倾角为70°、二次聚焦鞘气倾角为60°时，装置具有较好的聚焦效果。仿真和实验结果表明，3种不同工艺参数对喷印聚焦效果、喷印线条形貌的影响规律基本一致。当载气流量为20 mL/min、一次聚焦比为5、二次聚焦比为10时，获得了喷印质量最佳的线条，线宽约为72.13 μm，约为喷嘴直径的14.4%。结论 喷印线条线宽与载气流量呈正相关，与一次聚焦比、二次聚焦比呈负相关;喷印线条线高与载气流量、一次聚焦比、二次聚焦比呈正相关，证明了其仿真模型的合理性及可靠性。 |
| 英文摘要: |
| The work aims to investigate the optimal forming parameters of aerosol jet printing and further enhance the precision of jet printing. Firstly, the internal flow channel of aerosol jet printing heads was modeled and the impact of different sheath gas cone angles as the structural parameter of the jet printing head on the printing focus effect was analyzed. Secondly, through simulation and experiment, the impact of carrier gas flow, primary focusing ratio and secondary focusing ratio on the focusing effect and line morphology of jet printing were explored. Simulation results indicated that the device achieved better focusing performance when the primary focusing sheath gas had a cone angle of 70° and the secondary focusing sheath gas had a cone angle of 60°. Through simulation and experiment, it was verified that the impact patterns of three process parameters on the focusing effect and line morphology in jet printing were fundamentally consistent. At a carrier gas flow rate of 20 mL/min, a primary focusing ratio of 5, and a secondary focusing ratio of 10, optimal quality printed lines were obtained with a line width of approximately 72.13 μm, corresponding to approximately 14.4% of the nozzle diameter. The width of printed lines positively correlates with the carrier gas flow rate and negatively correlates with the primary and secondary focusing ratios. The height of printed lines positively correlates with the carrier gas flow rate, as well as the primary and secondary focusing ratios, proving the rationality and reliability of the simulation model. |
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