Title: Grinding of steel-ceramic-composites
Authors: Berend Denkena; Jens Köhler; Dennis Hahmann
Addresses: Institute of Production Engineering and Machine Tools, Leibniz Universität Hannover, An der Universität 2, 30823 Garbsen, Germany. ' Institute of Production Engineering and Machine Tools, Leibniz Universität Hannover, An der Universität 2, 30823 Garbsen, Germany. ' Institute of Production Engineering and Machine Tools, Leibniz Universität Hannover, An der Universität 2, 30823 Garbsen, Germany
Abstract: Steel-ceramic composites offer a high potential as protective layers of mechanically and abrasively highly loaded parts. However, the machining of steel-ceramic composites is a great challenge for the process design due to the very different mechanical properties of the brittle ceramic particles embedded in the ductile steel matrix. Both materials must be machined simultaneously in a ductile mode to gain high surface qualities. This paper introduces a new process characteristic that describes the influence of the peripheral grinding process settings and tool specifications on the process forces and workpiece surface roughness when grinding steel-ceramic composites. An empirical model is derived to estimate the surface roughness depending on the process settings and tool specifications. It is also shown that the results gained in peripheral grinding can be transferred to face grinding. Adequate process parameters can be therefore estimated in both grinding processes to gain high surface qualities.
Keywords: steel-ceramic composites; peripheral grinding; face grinding; diamond; steel; ceramics; process design; surface roughness; surface quality; modelling.
International Journal of Abrasive Technology, 2012 Vol.5 No.2, pp.152 - 174
Received: 02 Dec 2011
Accepted: 10 May 2012
Published online: 30 Jul 2014 *