Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : October 22, 2016 - October 23, 2016
In order to generate micro scale texture on the large scale and complex surface, a rotary Fast Tool Servo (FTS) is proposed. The rotary FTS is actuated by the magnetostrictive element (GME), which can be driven without energy supply wire. On the other hand, under a variation of the stress, the GME changes its magnetic permeability. Due to this feature, the GME is adopted as a vibration sensor. In this study, in order to monitor machining status, the GME is employed not only as an actuator but also as a force sensor. In this paper, as an approach to a measurement of the magnetic permeability without contact, the two methods using a counter electromotive force and an induced voltage change occurring in the detective coil are applied. Performance evaluation results confirmed that the developed rotary FTS can detect machining status during GME actuation.
