Additive manufacturing of three-dimensional intricate microfeatures by electrolyte-column localized electrochemical deposition
Additive manufacturing of three-dimensional intricate microfeatures by electrolyte-column localized electrochemical deposition
复制标题
通过电解质柱局部电化学沉积增材制造三维复杂微观特征
DOI：
10.1016/j.addma.2021.102582
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发表时间：
2022-01-01
影响因子：
11
通讯作者：
Ao Sansan
中科院分区：
文献类型：
--
作者：
Wang Wei;Ming Pingmei;Ao Sansan
基于电化学沉积 (ECD) 的电化学增材制造 (ECAM) 因其制造无空隙和无裂纹三维 (3D) 复杂致密纳米和微米金属几何形状的鼓舞人心的能力而得到越来越多的使用。在这项研究中，最初提出了一种独特的电解质柱局部电化学沉积（ECL-ECD）来制造 3D 复杂精密微米和介观固体物体。在ECL-ECD中，在电解质喷嘴（阳极）和阴极表面之间维持动态稳定的电解质柱，金属电沉积由可控移动的电解质柱定位和引导。通过模拟和实验结果确定了其工作机制，并通过所提出的技术使用不同的路径规划和控制策略成功制造了一些复杂的结构，如弯曲柱状结构、U形、Z形和螺旋结构。结果表明，ECL-ECD在增材制造微米至毫米级独立金属几何形状方面具有优异的能力，同时具有较高的几何精度、良好的表面光洁度和材料致密性。 ECL-ECD作为一种新型金属增材制造（AM），在微观和细观金属制造方面具有显着的竞争力，填补了细观ECAM技术的空白。
Electrochemical additive manufacturing (ECAM) based on electrochemical deposition (ECD) has been increasingly used, owing to its inspiring capacities of fabricating void-free and crack-free three-dimensional (3D) complex dense nano-and micro-sized metal geometries. In this study, a unique electrolyte-column localized electrochemical deposition (ECL-ECD) was initially proposed to manufacture 3D intricate precision micro-and mesoscale solid objects. In ECL-ECD, a dynamically stable electrolyte column is maintained between the electrolyte nozzle (anode) and cathodic surface, and metal electrodeposition is localized and guided by the electrolyte column, which is moved controllably. Its working mechanisms were determined from simulations and experimental findings, and some intricate structures such as curved columnar structures, U-shaped, Z-shaped, and spiral structures were successfully manufactured via the proposed technique using different path planning and control strategies. It was indicated that ECL-ECD has an excellent capacity in additively manufacturing micrometer-to-millimeter-scale freestanding metal geometries simultaneously with relatively high geometrical accuracy, good surface finish, and material compactness. ECL-ECD, as a novel metal additive manufacturing (AM), is significantly competitive in micro and mesoscale metal manufacturing, filling the gap in mesoscale ECAM technology.