Abstract
Magnetostrictive materials are a group of smart materials with comparable properties to piezoelectric materials regarding strain and operating frequency. In contrast, the Curie temperature is much higher and the principle effect allows different actuator designs. Especially in the case of rotating actuators in ultrasonic assisted machining, a high potential is seen for a simplified energy transmission. In the study, a test stand for a rotating actuator with simultaneous vibration in longitudinal direction was designed to show the proof of principle for this idea. It was shown that the current inducing the magnetic field as well as its frequency influence the amplitude of the rotating actuator. This is a first step to developing a rotating actuator for ultrasonic machining.
Highlights
Materials have abased high on potential to be utilized in rotating actuators close this substantial research gap, the aim of this work is to provide a proof of principle for a rotating because of their inherent material properties and their actuation principle
In order to close this substantial research gap, the aim of this work is to provide a proof of principle for a rotating actuator with superimposed linear vibration
A stable amplitude is an important requirement for a cutting process
Summary
Challenges for Dynamic Additional Axes for Rotating Tools. It is a great challenge of our time to develop highly efficient production processes for the manufacturing of tribological surfaces using superimposed actuator movements [1]. One application case is ultrasonic assisted cutting. It has several advantages compared to a conventional cutting process. It is possible to decrease the cutting force and increase the tool lifetime in this way [2]. A reduction of the burr or high productive micro structuring is possible. Piezoelectric ceramics are utilized in such systems to generate the required vibration during the process [3]. Ultrasonic assisted machining is widely used in various machining processes [2,3,4]
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