Title: Geometric accuracies of NC and conventionally drilled holes

Authors: A. El-Tammimi, S.M. Darwish

Addresses: Mechanical Engineering Department, Faculty of Engineering, King Saud University, PO Box 800, 11421 Riyadh, Saudi Arabia. ' Mechanical Engineering Department, Faculty of Engineering, King Saud University, PO Box 800, 11421 Riyadh, Saudi Arabia

Abstract: Experimental results of a study on geometric accuracies of NC and manually drilled holes are presented. The effect of cutting speed, feed rate and drill diameter on dimensional accuracy, surface, quality and geometrical tolerances of NC and manually drilled holes are considered, compared and reported.

Keywords: drilling accuracy; manual drilling; numerical control; NC drilling; hole drilling; cutting speed; feed rate; drill diameter; dimensional accuracy; surface quality; geometrical tolerances.

DOI: 10.1504/IJMPT.1997.036361

International Journal of Materials and Product Technology, 1997 Vol.12 No.2/3, pp.223 - 237

Published online: 02 Nov 2010 *

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