Evaluation Method of Machine Tool Thermal Deviation with Patterned Spindle Speed Test

Abstract

Authors have proposed the evaluation method that identifies the characteristics parameters of machine tool thermal deviation with patterned spindle speed test. This method is efficient, since the transient behaviors of thermal deviations with any spindle speed are also evaluated at one test. However, there is a possibility not to be able to evaluate properly the characteristics changing with spindle speed. Therefore, new method is proposed, that can evaluate the thermal deviation characteristics of the machine tools peculiar to each spindle speed range, and its validity is shown.