三次元切削温度と被削材への熱流入割合の簡易推定法

概要

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This paper proposes a simple and practical procedure for estimating the cutting temperature and the heat flow rate into the workpiece for arbitrary cutting conditions in three-dimensional cutting. In the analysis of cutting temperature, numerical approaches proposed by Lowen and Shaw, which were originally intended for orthogonal cutting, are extended to three-dimensional cutting operations. Cutting temperatures so obtained are found to be in good agreement with the experimental data under various cutting conditions. The heat flow rate into the workpiece is evaluated experimentally using a radiation pyrometer, and is also analyzed by a finite difference method. It is concluded that the heat flow rate is influenced not only by the thermal number and the shear angle but also by the ratio of the corner radius to the length of the major cutting edge.
1996-09-25