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Novel methods for scalable manufacturing of micro-textured surfaces

机译：可扩展制造微纹理表面的新方法

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摘要

The primary objective of surface engineering methods is the creation of component surfaces with novel attributes that enhance product life cycle. It has long been recognized that functional performance of components is strongly determined by surface texture (e.g., form, bearing area, plasticity index). While a number of micro-scale surface texturing techniques have been proposed, conventional protocols are limited to lab-scale studies and are inherently difficult to adapt for high-volume, large surface area component applications. In contrast, micro-scale material removal methods based on superimposed tool modulation offer advantages for overcoming this challenge. In this study, we demonstrate the ability to prescribe micro-scale textures of controlled size and morphology by control of the underlying process parameters. Novel surface textures ranging from protrusions (ribs, fins) to depressions (dimples) are demonstrated and a process framework for their manufacture is presented. A geometric simulation for predicting the resulting textures is developed and the model is calibrated using topographical scans of experimentally produced surfaces. Implications of the novel texturing methods for industrial applications in the biomedical, automotive and aerospace sectors are briefly discussed.
机译：表面工程方法的主要目标是创建具有新颖属性的零部件表面，以增强产品生命周期。早就认识到，部件的功能性能强烈地取决于表面纹理（例如，形状，支承面积，可塑性指数）。尽管已经提出了许多微尺度的表面纹理化技术，但是常规协议仅限于实验室规模的研究，并且固有地难以适应大批量，大表面积组件的应用。相反，基于叠加工具调制的微型材料去除方法为克服这一挑战提供了优势。在这项研究中，我们证明了通过控制基本工艺参数来规定尺寸和形态可控的微尺度纹理的能力。演示了从凸起（肋，鳍）到凹陷（凹痕）的新颖表面纹理，并介绍了其制造的工艺框架。开发了用于预测最终纹理的几何模拟，并使用实验产生的表面的地形扫描对模型进行了校准。简要讨论了新型纹理化方法在生物医学，汽车和航空航天领域的工业应用的意义。

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