Achieving Large-Area Hot Embossing of Anti-Icing Functional Microstructures Based on a Multi-Arc Ion-Plating Mold
Xiaoliang Wang, Han Luo, Hongpeng Jiang, Zhenjia Wang, Ziyang Wang, Haibao Lu, Jun Xu, Debin Shan, Bin Guo, Jie Xu
TL;DR
This paper presents a new method for creating anti-icing microstructures on aluminum surfaces using a multi-arc ion-plating mold, improving embossing quality and performance.
Contribution
A novel PVD-coated mold for hot embossing that enhances filling quality and anti-icing properties of microstructures.
Findings
PVD-coated steel shows 44.7% higher hardness and 66.2% lower friction coefficient than conventional steel.
PVD-coated punch-assisted embossing at 300°C ensures complete filling of micro-array channels without defects.
Micro-array channels reduced freezing fraction by 53.2% and delayed freezing time by 193.3% due to trapped air layers.
Abstract
Aluminum alloy surface microstructures possess functional characteristics such as hydrophilicity/hydrophobicity and anti-icing and have important applications in fields such as aerospace and power systems. In order to improve the filling quality of the microstructure and verify the anti-icing property of the microstructure, this work develops a scheme for achieving large-area hot embossing of anti-icing functional microstructures based on a multi-arc ion-plating mold. Compared with conventional steel, the hardness of the PVD-coated steel increases by 44.7%, the friction coefficient decreases by 66.2%, and the wear resistance is significantly enhanced. The PVD-coated punch-assisted embossing could significantly improve filling properties. While the embossing temperature is 300 °C, the PVD-coated punch-assisted embossing can ensure the complete filling of the micro-array channels. In…
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Taxonomy
TopicsMetal and Thin Film Mechanics · Adhesion, Friction, and Surface Interactions · Advanced Surface Polishing Techniques