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首页> 外文会议>Laser-based micro- and nanopackaging and assembly VI >Laser structuring of metallic mold inserts by using us, ns, and ps-laser ablation
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Laser structuring of metallic mold inserts by using us, ns, and ps-laser ablation

机译：使用us，ns和ps激光烧蚀对金属模具插件进行激光结构化

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Bio-inspired surfaces targeting functional characteristics such as anti-reflectivity, self-cleaning effects or a drag reduction are of significant interest to industry. In this feasibility study, process chains for the mass production of so-called shark skin structured surfaces are investigated. Due to their drag reduction properties, such bio-inspired surfaces are of relevance to a number of applications in which particular aqua- and aerodynamic characteristics are required. The design of the shark skin structure relies on a bio-mimetic analytical model to generate the 3D surface model necessary to achieve the targeted surface functionality. The process chains presented combine laser ablation as a method for micro structuring masters for high throughput replication employing injection molding. In particular, three different process chains that rely on micro second (μs), nano second (ns) and pico second (ps) laser ablation systems to pattern mold inserts were investigated. Then, these inserts were integrated into a tool for micro injection molding and replication trials were carried out. The results show that all three laser sources can be utilized to create this kind of micro cavities. This research indicates that these micro structures can be replicated successfully, but further work is required to optimize the replication and laser structuring process.
机译：具有功能特性（例如抗反射性，自清洁效果或减阻性）的具有生物启发性的表面在工业上引起了极大的兴趣。在此可行性研究中，研究了用于大规模生产所谓鲨鱼皮结构表面的工艺链。由于它们的减阻特性，这种具有生物启发性的表面与许多需要特殊的水上和空气动力学特性的应用有关。鲨鱼皮肤结构的设计依赖于仿生分析模型来生成实现目标表面功能所需的3D表面模型。提出的工艺链结合了激光烧蚀技术，作为采用注射成型的高通量复制的微结构母盘的一种方法。特别是，研究了三种不同的工艺链，这些工艺链依赖于微秒（μs），纳秒（ns）和皮秒（ps）激光烧蚀系统对模具镶件进行图案化。然后，将这些插件集成到用于微注射成型的工具中，并进行复制试验。结果表明，所有三个激光源均可用于创建此类微腔。这项研究表明，这些微结构可以成功复制，但是需要进一步的工作来优化复制和激光结构化过程。

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