采用结构化刀具的微力伺服加工装置及工艺实验

Experimental setup and procedure for micro-force servo machining using micron-scale forming tools

  • 摘要: 为解决当前纳米刻划加工中存在的效率偏低、结构重复性差等瓶颈,构建了一套集成微力伺服刀架的面向亚微米尺度结构制造的专用实验装置。选用具有正弦轮廓特征的结构化刀具,分别开展恒定法向载荷与变化载荷两种模式下的刻划试验。重点探究法向载荷与实际刻划深度之间的映射规律,并对比分析不同加载策略对材料去除行为的影响。在此基础上,实现了大面积三维正弦亚微米结构阵列的制备;进一步将该工艺拓展至曲面加工,在微球表面完成了三维正弦沟槽结构精密加工。研究结果为三维纳米结构高效加工提供了新的技术方案。

     

    Abstract: To address the current bottlenecks such as low efficiency and poor structural repeatability in nano-scratching processing, a dedicated experimental platform integrating a micro-force servo tool holder was constructed for the manufacturing of sub-micron-scale structures. Structured cutting tools with sinusoidal contour features were selected, and grinding experiments under constant normal load and variable load modes were carried out. The relationship between normal load and actual scratching depth was explored, and the influence of different loading strategies on material removal behavior was compared and analyzed. Based on these results, large-area three-dimensional sinusoidal sub-micron structure arrays were fabricated. The process was further extended to curved surface machining, and precise fabrication of three-dimensional sinusoidal groove structures on microsphere surfaces was achieved. The results provide a new technical solution for efficient fabrication of three-dimensional nanostructures.

     

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