Abstract
Recently, micromilling has been increasing in not only mechanical industry but also chemical and biomedical industries. Since then, drastic progress has been seen in the micromilling with the technology in micro/nanoscale measurement, control, and microtooling. This chapter describes the typical processes in micromilling with the technical issues for micromanufacturing. In the introduction, the aim of this chapter is shown with the applications of the micromilling. Then, the second section describes the micromilling tools and some issues in manufacturing the end mills. In the third section, the micromilling process is discussed from the point of the machining operations. Cutter runout and tool deflection in micromilling are discussed to realize stable milling operations. In the fourth section, chip formation and a cutting force model are described to understand the microcutting. Then, the intermittent chip formation in micromilling is described with introducing a model. The fifth section describes the micromilling in terms of materials. The size and the orientation of crystal grains should be discussed in micromilling. The microcuttings of fine-grained steels are compared with those of the normal steels. Burr formation is relatively large compared to the microparts in micromilling. A deburring approach is introduced to improve the machining quality. Then, micromilling of brittle materials is described with the applications. The last section concludes the issues of the micromilling for the future machining.
Published Version
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