Abstract

The method used for turning micro shafts less than 1mm in diameter has been suggested, and clarified to establish the technical system. A linear relationship between thrust force and depth of cut, under a controlled condition of approach angle was also confirmed in experiments. The empirical equation was obtained for estimation of thrust force. It is well known that the cutting force increases as workpiece hardness increases. The relationship between thrust force and Vickers hardness is investigated in this study. On basis of experimental results, it could be confirmed that the linear relationships are established between the each coefficient of the empirical equation suggested here and Vickers hardness of workpiece.

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