Title: The role of crystallographic orientation on the forces generated in ultra-precision grinding of anisotropic materials such as monocrystalline silicon

Authors: Eric R. Marsh, Jeremiah A. Couey, R. Ryan Vallance, Allen Y. Yi

Addresses: Machine Dynamics Research Laboratory, The Pennsylvania State University, 21 Reber Building, University Park, PA 16802, USA. ' Machine Dynamics Research Laboratory, The Pennsylvania State University, 21 Reber Building, University Park, PA 16802, USA. ' Precision Systems Laboratory, The George Washington University, 738 Phillips Hall, 801 22nd Street, N.W., Washington, DC 20052, USA. ' Department of IWSE, The Ohio State University, 1971 Neil Avenue, Columbus, OH 43210, USA

Abstract: Monitoring forces when grinding crystalline materials is advantageous for optimising process conditions, improving process control and producing high quality parts. Yet, this is challenging in precision applications where aerostatic spindles and small depths of cut are common. This work presents a system of measuring grinding forces in precision applications. Several experiments demonstrate the performance in monitoring diamond wheel dressing, detecting workpiece contact and process monitoring. The system appears promise for monitoring precision wafer.

Keywords: silicon grinding; brittle materials grinding; process monitoring; crystallographic orientation; grinding forces; ultraprecision grinding; anisotropic materials; monocrystalline silicon; diamond wheel dressing; workpiece contact; precision wafers.

DOI: 10.1504/IJMTM.2007.014159

International Journal of Manufacturing Technology and Management, 2007 Vol.12 No.1/2/3, pp.270 - 283

Published online: 23 Jun 2007 *

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