Title: Indirect measurement of grinding wheel run-out using acoustic emission

Authors: Thomas R.A. Pearce, David C. Fricker, Alan Speight

Addresses: RAMP Laboratory, Institute of Grinding Technology, University of the West of England, Bristol Frenchay Campus, Coldharbour Lane, Bristol BS16 1QY, UK. ' RAMP Laboratory, Institute of Grinding Technology, University of the West of England, Bristol Frenchay Campus, Coldharbour Lane, Bristol BS16 1QY, UK. ' RAMP Laboratory, Institute of Grinding Technology, University of the West of England, Bristol Frenchay Campus, Coldharbour Lane, Bristol BS16 1QY, UK

Abstract: The roundness of a plunge ground cylindrical workpiece is a function of both the grinding wheel run-out and the waveshift. Waveshift determines how roundness profiles of the workpiece overlap in consecutive revolutions and is the difference between the ratio of the wheel rpm to the workpiece rpm and the next highest integer. In this paper, Acoustic Emission (AE) is evaluated as a possible method of monitoring wheel run-out, by measuring its amplitude at the wheel frequency. Variation of the AE signal at wheel frequency with waveshift is similar to model predictions of the variation in the normal force at wheel frequency and it reaches a maximum at a waveshift of 0.5. Tests to establish the linearity of the AE measurement with the amount of run-out show some scatter that needs to be understood before the technique can be successfully applied.

Keywords: acoustic emission; AE; plunge cylindrical grinding; roundness profiles; grinding wheels; run-out monitoring; waveshift.

DOI: 10.1504/IJMTM.2007.014147

International Journal of Manufacturing Technology and Management, 2007 Vol.12 No.1/2/3, pp.139 - 154

Published online: 23 Jun 2007 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article