研究目的
Investigating the micro milling for manufacturing of the functional surfaces, which control material behavior with the surface topography.
研究成果
The chapter concludes that micro milling offers advantages in controlling three-dimensional shapes and surface functionalities with high precision and flexibility. The reduction of crystal grain sizes in materials improves machining accuracy and surface quality. Micro dimple milling at high production rates is demonstrated as an effective method for creating functional surfaces, with applications in controlling optical reflection and wettability. The chapter highlights the potential for future applications in various industries, emphasizing the need for high efficiency, controllability, and low running costs in micro fabrication processes.
研究不足
The chapter discusses the challenges in micro milling, such as the influence of edge radius on the removal mechanism, the need for high precision in tool manufacturing, and the impact of material grain size on machining accuracy and surface quality. It also mentions the environmental impact, flexibility, cost, and production rate as limitations of alternative processes like etching and energy beam processes.
1：Experimental Design and Method Selection:
The chapter describes the micro milling process for manufacturing functional surfaces, focusing on the operations and the removal process. It includes the use of micro end mills and the consideration of material behavior in terms of crystal grain size and orientation.
2：Sample Selection and Data Sources:
The experiments involve micro milling of fine-grained stainless steel and standard steel, with comparisons made based on their microstructures and mechanical properties.
3：List of Experimental Equipment and Materials:
Micro end mills of various diameters, single-point tools made of single crystal diamond, and ball end mills coated by TiAlN are used. Materials include fine-grained and standard stainless steels.
4：Experimental Procedures and Operational Workflow:
The process includes micro dimple milling with an inclined ball end mill, adjustment of cutter runout, and measurement of cutting forces and surface profiles.
5：Data Analysis Methods:
The analysis involves comparing cutting forces, surface finishes, and burr formations between fine-grained and standard steels, and simulating dimple shapes using a mechanistic model.
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