Finite element modelling of ultrasonic forming processes

Daud, Y. and Lucas, M. (2007) Finite element modelling of ultrasonic forming processes. In: International Congress on Ultrasonics, Vienna, Austria, 9-13 Apr 2007, pp. 1-7. (doi: 10.1088/1742-6596/181/1/012027)

Abstract

Since the 1950's researchers have carried out investigations into the effects of applying ultrasonic excitation to metals undergoing elastic and plastic deformation. Experiments have been conducted where ultrasonic excitation is superimposed in complex metalworking operations such as wire drawing and extrusion, to identify the benefits of ultrasonic vibrations. This study presents a finite element analysis of ultrasonic excitation applied to the extrusion of a cylindrical aluminium bar. The effects of friction on the extrusion load are reported for the two excitation configurations of radially and axially applied ultrasonic vibrations and the results are compared with experimental data reported in the literature.

• Item Type: Conference Proceedings
• Keywords: Modelling
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Lucas, Professor Margaret
• Authors: Daud, Y., and Lucas, M.
• College/School: College of Science and Engineering > School of Engineering > Systems Power and Energy