Particle-on-demand electrohydrodynamic printing from a reciprocating tip

IF 6.1 1区工程技术 Q1 ENGINEERING, MANUFACTURING

Journal of Manufacturing Processes Pub Date : 2025-04-23 DOI:10.1016/j.jmapro.2025.04.011

Ji-hun Jeong , Seong Jae Kim , Sanha Kim , A. John Hart

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引用次数: 0

Abstract

While inkjet printing has revolutionized manufacturing of graphics and decorations, flexible electronics, and has enabled new additive manufacturing (AM) technologies, direct micro-scale deposition of metals remains challenging. Here, we present a particle-on-demand electrohydrodynamic printing approach, using a reciprocating tip mechanism that enables particles to be fed and ejected individually from an oil-coated membrane, and then printed to a target substrate. We examine the mechanism of printing using high-speed imaging and study the limiting mechanisms via controlled experiments with a range of particle sizes and materials, and then extract representative scaling laws for the ejection behavior. Based on this understanding, we demonstrate printing of two-dimensional patterns of stainless steel microparticles over a wide size range (50–700 μm particle diameter). With envisioned improvements to the tip geometry and particle-fluid interaction, and via parallelization, this particle-on-demand approach would be a versatile addition to high-resolution printing technologies for metals, including for manufacturing of intricate miniature components.

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从往复尖端按需打印颗粒的电流体动力

虽然喷墨打印已经彻底改变了图形和装饰品、柔性电子产品的制造，并实现了新的增材制造（AM）技术，但金属的直接微尺度沉积仍然具有挑战性。在这里，我们提出了一种颗粒按需电流体动力打印方法，该方法采用往复式针尖机制，可将颗粒从涂有油的膜上单独送入和喷出，然后打印到目标基底上。我们利用高速成像技术检查了打印机制，并通过对一系列颗粒大小和材料的控制实验研究了限制机制，然后为喷射行为提取了具有代表性的缩放定律。在此基础上，我们演示了大尺寸范围（50-700 微米颗粒直径）的不锈钢微颗粒二维图案打印。通过对针尖几何形状和微粒与流体相互作用的改进以及并行化，这种按需打印微粒的方法将成为金属高分辨率打印技术的多功能补充，包括用于制造复杂的微型部件。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Manufacturing Processes ENGINEERING, MANUFACTURING-

CiteScore

10.20

自引率

11.30%

发文量

833

审稿时长

50 days

期刊介绍： The aim of the Journal of Manufacturing Processes (JMP) is to exchange current and future directions of manufacturing processes research, development and implementation, and to publish archival scholarly literature with a view to advancing state-of-the-art manufacturing processes and encouraging innovation for developing new and efficient processes. The journal will also publish from other research communities for rapid communication of innovative new concepts. Special-topic issues on emerging technologies and invited papers will also be published.