抄録
In turning with actively driven rotary lathe tool, the cutting edge is heated during contact with workpiece and cooled in air cutting. Therefore, both mechanical and thermal loads are dispersed on the overall circular cutting edge which leads to reduction of cutting temperature and then tool wear. In this report, cutting point temperature is numerically analyzed by DFFROM-3D software and analytical results are compared with that of experiments. Both analysis and experiments reveals that the cutting point temperature decreases with tool rotational speed but it increases again as the tool rotational speed exceeds a certain value. This critical tool rotational speed by analysis roughly coincide with that of experiment. The temperature values, however, at higher tool rotational speed do not agree with the experimental results because it is difficult to estimate the friction coefficient and heat transfer coefficient between the tool rake and cutting chip.
