Theoretical and Experimental Study on the Surface Microstructures of Polyimide in Ultra-Precision Fly-Cutting

Polymers, Journal Year: 2025, Volume and Issue: 17(8), P. 1099 - 1099

Published: April 18, 2025

Polyimide (PI) with surface microstructures has broad application prospects in aerospace, integrated circuits, and optical engineering due to its excellent mechanical properties, high thermal stability, chemical resistance. Ultra-precision fly-cutting (UPFC) is a promising advanced technique for machining PI microstructures. However, few studies on the UPFC of materials are reported. In this study, principle analyzed, comparative study different processing strategies conducted. The experimental results demonstrate that climb cutting strategy more suitable microstructure machining, which can significantly reduce burr formation achieve lower roughness. theoretical models describing tool motion predicting maximum chip thickness established, predicted consistent results. Moreover, influence process parameters morphology dimensional accuracy assessed through series experiments. indicate depth step-over dominant factors influencing Furthermore, force during extremely small, only range millinewtons (mN). addition, feed direction exhibits sensitivity variations compared other directional components. This provides guidance establishment model selection fabricating

Language: Английский

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Synergistically biomimetic platform that enables droplets to be self-propelled

International Journal of Extreme Manufacturing, Journal Year: 2024, Volume and Issue: 6(5), P. 055503 - 055503

Published: June 25, 2024

Abstract Droplet transport still faces numerous challenges, such as a limited distance, large volume loss, and liquid contamination. Inspired by the principle of ‘synergistic biomimetics’, we propose design for platform that enables droplets to be self-propelled. The orchid leaf-like three-dimensional driving structure provides forces droplets, whereas lotus superhydrophobic surface prevents adhesion, bamboo-like nodes enable long-distance transport. During droplet transport, no external energy input is required, fluid adhesion or residue induced, contamination mass loss caused. We explore influence various types parameters wedge structures on transportation, deceleration speed at nodal points, distribution internal pressure. results indicate exhibits insensitivity pH value temperature. It allows transported with varying curvatures in spatial environment, making it applicable tasks like target collection, well load, fused, anti-gravity, maximum reached (58 ± 5) mm·s −1 , distance extended (136 4) mm. developed holds significant application prospects fields biomedicine chemistry, high-throughput screening drugs, genomic bioanalysis, microfluidic chip technology drug delivery, analysis biological samples.

Language: Английский

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Laser-based functionalization for superhydrophobic silicon carbide with mechanical durability, anti-icing and anti-fouling properties

Ceramics International, Journal Year: 2024, Volume and Issue: 50(20), P. 39307 - 39317

Published: July 21, 2024

Language: Английский

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The ultrafast burst laser ablation of metals: Speed and quality come together

Optics & Laser Technology, Journal Year: 2024, Volume and Issue: 180, P. 111458 - 111458

Published: July 25, 2024

Language: Английский

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High-efficient and scalable fabrication of robust superhydrophobic microarrays through maskless electrochemical machining

Colloids and Surfaces A Physicochemical and Engineering Aspects, Journal Year: 2023, Volume and Issue: 681, P. 132700 - 132700

Published: Nov. 7, 2023

Language: Английский

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