Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : September 13, 2020 - September 16, 2020
One of most significant causes that decrease machining accuracies of machine tools is a thermal deformation of machine tools attributed to temperature change of its main components. Therefore, it is necessary to establish a sophisticated design method for machine tools in which the thermal characteristics of machine tools are fully considered so that thermally stable machine tools can be developed. However, the thermal characteristics of machine tools are still poorly understood. This is because a thermal phenomenon of the machine tool is extremely complicated. For instance, a complex correlation between several heat sources and three kinds of heat transfer forms, namely the conductive heat transfer, the convective heat transfer and the radiative heat transfer exists. Therefore, in this paper, the measuring method of thermal parameters for machine tools are proposed and tested. In the proposed method, the convective heat transfer and the radiative heat transfer can be measured simultaneously. In addition, the prediction accuracy of the proposed temperature prediction model is evaluated by comparing the predictions to the measurement results using a simplified machine tool component.
