制造具有高三维能力和高结构精度的定制微针

IF 10.3 1区 工程技术 Q1 ENGINEERING, MANUFACTURING
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引用次数: 0

摘要

先进的三维制造技术对于三维设备的加工至关重要,这主要集中在出色的三维制造能力和高结构精度上。虽然三维打印技术可以创建具有广泛定制性的复杂三维结构,但由于树脂固化结合不完全,在材料内部实现精确的微/纳米结构面临着显著的挑战。在此,我们建议将投影微立体光刻技术(PμSL)与飞秒激光贝塞尔光束钻孔技术相结合,以创建具有高级定制功能、精确结构(包括尺寸精度和高宽比)和高效加工的三维结构。从贝塞尔光束钻孔工艺开始,我们通过调节产品的透明度和弹性,在三维打印物品上实现了直径约为 1μm 的微孔,长宽比达到 1017:1。此外,我们还将这项技术应用于生产定制微针,包括斜尖微针和多孔微针,证明了其广泛、高效的微孔加工能力,钻孔速度峰值可达每秒 20 万个。这项技术为制造具有复杂空腔结构的三维设备提供了一种创新方法,其令人印象深刻的加工能力表明它具有广泛的工业应用潜力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Fabrication of customized microneedle with high 3D capability and high structural precision
Advanced 3D fabrication techniques are essential for the processing of 3D devices, which mainly focusing on excellent 3D fabrication capability and high structural precision. Although 3D printing technology allows for the creation of complex 3D structures with extensive customization, it faces notable challenges in achieving precise micro/nanostructures within materials due to incomplete resin curing bonds. Here, we propose integrating projection micro-stereolithography (PμSL) with femtosecond (fs) laser Bessel beam drilling to create 3D structures with advanced customization, precise structures (including size accuracy and aspect ratio), and efficient processing. Starting with the drilling process using Bessel beams, we have achieved micro-holes with a diameter of approximately 1μm and the aspect ratio reached 1017:1 on 3D printed items by regulating the transparency and elasticity of the products. Furthermore, we have applied this technology to produce tailor-made microneedles, including slanted-tip microneedles and porous microneedles, demonstrating its ability for extensive, efficient micro-hole processing with a peak drilling speed of 200,000 holes per second. This technology offers an innovative approach to creating three-dimensional devices with intricate cavity structures, and its impressive processing capabilities suggest potential for broad industrial implementation.
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来源期刊
Additive manufacturing
Additive manufacturing Materials Science-General Materials Science
CiteScore
19.80
自引率
12.70%
发文量
648
审稿时长
35 days
期刊介绍: Additive Manufacturing stands as a peer-reviewed journal dedicated to delivering high-quality research papers and reviews in the field of additive manufacturing, serving both academia and industry leaders. The journal's objective is to recognize the innovative essence of additive manufacturing and its diverse applications, providing a comprehensive overview of current developments and future prospects. The transformative potential of additive manufacturing technologies in product design and manufacturing is poised to disrupt traditional approaches. In response to this paradigm shift, a distinctive and comprehensive publication outlet was essential. Additive Manufacturing fulfills this need, offering a platform for engineers, materials scientists, and practitioners across academia and various industries to document and share innovations in these evolving technologies.
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