Title: Rotary ultrasonic machining of dental ceramics

Authors: N.J. Churi, Z.J. Pei, D.C. Shorter, C. Treadwell

Addresses: Department of Industrial and Manufacturing Systems Engineering, Kansas State University, 2037 Durland Hall, Manhattan, KS 66506, USA. ' Department of Industrial and Manufacturing Systems Engineering, Kansas State University, 2037 Durland Hall, Manhattan, KS 66506, USA. ' Department of Industrial and Manufacturing Systems Engineering, Kansas State University, 2037 Durland Hall, Manhattan, KS 66506, USA. ' Sonic Mill, 7500 Bluewater Road NW, Albuquerque, NM, 87121, USA

Abstract: Dental ceramics are used for a number of aesthetic and prostheses applications due to their high compressive strength, superior wear resistance and natural aesthetical appearance. However, their cost-effective machining still remains a challenge. This paper reports an experimental study on machining of one type of dental ceramics (macor) with rotary ultrasonic machining (RUM). Effects of process parameters (spindle speed, feed rate and ultrasonic vibration power) on the cutting force, surface roughness, and chipping size are obtained.

Keywords: chipping size; cutting force; dental ceramics; grinding; rotary ultrasonic machining; RUM; spindle speed; surface roughness; surface quality; feed rate; ultrasonic vibration power.

DOI: 10.1504/IJMMM.2009.027328

International Journal of Machining and Machinability of Materials, 2009 Vol.6 No.3/4, pp.270 - 284

Published online: 20 Jul 2009 *

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