抄録
Thermal deformation in machine tools influences greatly on the machining accuracy. Therefore the importance of evaluation of the thermal deviation in machine tools becomes high. Besides, the demand of effective measurement and evaluation of the thermal deviation is becoming strong, since spending the time for the test of the thermal deformation influences directly on the production efficiency of machine tools. Therefore, in this paper, we devised the method which can evaluate independently the characteristics of thermal deviation caused by the single axis linear motion with the multiple linear motions of all axes. As a result, this method showed the much effectiveness in machining centers.
