Abstract
In this study, the design and production of a desk-top-type, small machine tool were carried out, and the cutting performance of a small-end mill tool at high-speed condition is investigated. The size of the developed machine tool is 300×400×340mm, and the weight is 50kg. This machine could reach a cutting speed of 16.7m/s using a small end mill. As a result of high-speed milling with this machine, a surface roughness of 1.34μmRz without tear parts was obtained at cutting speed of 16.7m/s. In addition, the thickness of deformed layers produced by milling operation at a speed of 16.7m/s decreased in comparison with that of layers produced at 2.5m/s. It was confirmed that the thickness of deformed layers at 16.7m/s was0.6μm.
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