Ultrasonic Cutting with a d31-mode PMN-PT-Driven Planar Tool

Sadiq, M.R., Kuang, Y., Huang, Z. and Cochran, S. (2011) Ultrasonic Cutting with a d31-mode PMN-PT-Driven Planar Tool. In: 2011 IEEE International Ultrasonics Symposium (IUS), Orlando, FL, USA, 18-21 Oct 2011, pp. 2189-2192. ISBN 9781457712524 (doi: 10.1109/ULTSYM.2011.0543)

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Abstract

Ultrasonic cutting tools based on a mass-spring configuration of a drive transducer are widely used in surgery. However, the weight and self-heating of this configuration are weaknesses. An alternative approach is to use a planar tool to which piezoelectric drive components are bonded directly. This paper details the design and characterization of such a tool, utilizing PMN-PT relaxor single crystal material operated in the d31 mode. The tool, resembling a dagger, is able to produce longitudinal displacements >; 6 μm when driven with 50 Vp-p at the resonance frequency, 73 kHz. The effectiveness of finite element analysis has been observed as the behavior of the tool was accurately predicted prior to its fabrication. Furthermore, ways to improve the efficiency of the tool by reconfiguring the material have been explored and implemented.

Item Type:Conference Proceedings
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Cochran, Professor Sandy
Authors: Sadiq, M.R., Kuang, Y., Huang, Z., and Cochran, S.
College/School:College of Science and Engineering > School of Engineering > Systems Power and Energy
ISSN:1051-0117
ISBN:9781457712524

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