Author(s)

N. Imai & S. Shimizu

Abstract

It has been proposed a simple six-degree-of-freedom measurement method of thermal deviations caused by linear axis motion that has compatibility with the method in IS0230-3. In this study, the measurement tests were carried out on two machining centres that have their own different structures. From the results, it was made clear that the thermal deviations are large not only in the feed direction, but also in the other direction; and these deviations and thermal deformation modes depend largely on the type of machine structure. 1 Introduction Thermal deviation of machine tools has become a serious problem in recent years. A universal measurement and evaluation method for the deviation should be expected. With this point as the background, the international standard IS0 230-3 was established in May 2001. I

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