Title: A multi-linear cutting model

Authors: Jean-Yves K'nevez, Olivier Cahuc, Sylvain Laporte, Philippe Darnis

Addresses: Laboratoire de Mecanique Physique, UMR CNRS 5469, Universite Bordeaux 1, 351 cours de la liberation, 33405 Talence Cedex, France. ' Laboratoire de Mecanique Physique, UMR CNRS 5469, Universite Bordeaux 1, 351 cours de la liberation, 33405 Talence Cedex, France. ' Ecole Centrale de Nantes, IRCCyN, 1, rue de la Noe, Bp 92101, 44321 Nantes Cedex 03, France. ' Laboratoire de Genie Mecanique et Materiaux de Bordeaux, Domaine Universitaire, 15 rue Naudet, CS10207, 33175 Gradignan, France

Abstract: This study deals with the development of a new cutting model for pre-pierced drilling and reaming. This model is based on an experimental approach which links the drill geometric parameters to the mechanical actions of the cutting process. Literature proposes many works about this subject in which analytical or numerical models answer the problem using behaviour laws, strain and stress shields, temperature, etc. The presented method consists in correlating geometry and behaviour in an experimental way without modelling the real complexity of the phenomenon. The main purpose of this work consists of the comprehension of the influence of geometric parameters on cutting forces for any part of the cutting edge (to the exclusion of the chisel edge region). The use of an original single variable cutting edge drill prototype allows us to fully quantify forces and torques exerted on any point of the cutting edge.

Keywords: cutting models; pre-pierced drilling; reaming; point geometry; experimental approach; geometric parameters; cutting forces; cutting edge.

DOI: 10.1504/IJMMM.2009.023389

International Journal of Machining and Machinability of Materials, 2009 Vol.5 No.2/3, pp.155 - 175

Published online: 20 Feb 2009 *

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