Title: Modelling of plowing forces in orthogonal machining with profilometric data

Authors: Raja Kountanya

Addresses: Diamond Innovations, 6325 Huntley Road, Columbus OH 43229, USA

Abstract: Use of profilometric data of the cutting edge in prediction of edge-rubbing or plowing forces is described. A lower-bound estimate using elastic contact analysis of the cutting tool indenting the workmaterial was performed paying close attention to the tool-workpiece contact zone. The model predicted that the clearance angle does not influence edge rubbing forces for a fresh tool. However for a worn tool, a non-monotonic variation of plowing forces with flank wear was predicted. As field application, analysis performed on PCBN valve-seat machining tools, both fresh and worn is shown. The estimate of the edge rubbing forces compared favourably with that obtained for idealised parameters.

Keywords: edge hone; plowing forces; orthogonal machining; WLI; white light interferometry; edge rubbing; cutting edges; elastic contact analysis; tool wear; flank wear; PCBN valve-seat tools.

DOI: 10.1504/IJMMS.2009.027130

International Journal of Mechatronics and Manufacturing Systems, 2009 Vol.2 No.4, pp.465 - 479

Published online: 15 Jul 2009 *

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