505 A Study on Active Thermal Deformation Compensation for a High-Speed Machining Center

Abstract

This paper describes a trial of the active thermal deformation compensation for a high-speed machining center. Deformation sensors and thermal actuators which consist of electrical heaters, fins and cooling fans were implemented to realize the active thermal deformation compensation. The position and the inclination of the spindle were predicted using a matrix method. The predicted error was less than 5μm in case that the spindle speed was varied up to 12,500rpm.