B031 Theoretical Models, Instrumental Implementation and Preliminary Result of Ultrasonic Assisted Turning

Abstract

Vibration at an ultrasonic frequency is superimposed on the motion of the cutting tool used in conventional machine tool in ultrasonic-vibration assisted turning. Ultrasonic assisted turning (UAT) combines precision machining with small-amplitude tool vibration to improve the fabrication process. It has been applied in the turning machine for more precise in machining process. In this paper, theoretical modelling and instrumental implementation issues for ultrasonic assisted turning are presented and explored in depth. The modelling is focused on establishing the scientific relationship between the process variables/tooling geometry and all the process outcomes including tool wear, surface roughness, cutting force and surface integrity. Instrumental implementation mainly includes the design of the ultrasonic generation device and its control system. The design of the vibration assisted machining device is based on combining a piezo actuator into a turning tool holder (VAT Tool Holder). The control system is developed using LabVIEW programming. Frequency and amplitude of the vibrations can also be controlled by using this LabVIEW programming system together with the interfacing between the computer and the Data Acquisition (DAQ) card. For the Finite Element Modelling (FEM), Ansys Software will be use analyse the Modal and Static Analysis. This paper also concludes with a further discussion on the potential and applications of the techniques and systems developed for the usage of turning machining in manufacturing purposes.