European Journal of Scientific Research (ISSN: 1450 ... - EuroJournals

© European Journal of Scientific Research, Vol 7, No 5, 2005
CONNECTIONS BETWEEN CUTTING PRESSURES, DENSITY AND SURFACE
QUALITIES OF SOME WOOD CONTAINING COMPOSITES
A. Zerizer 1 , P. Martin 2
1
Laboratoire des Matériaux minéraux et composites, Département de Génie des Matériaux,
Université A. BOUGARA, Tel-Fax 024-81-64-08, 35000 BOUMERDES, ALGERIE
2 Ecole Nationale Supérieure d'Arts et Métiers, 4 rue Augustin Fresnel-METZ, Tel 03-87-37-54-
30, Fax 03-87-37-54-70, 57078 METZ, France
ABSTRACT
Various samples of wood containing composites have been studied as to their behaviour to
machining, of the quality of produced surfaces and their densitometric characteristics. It has been
brought to the influence of the density and the cutting conditions through Em (average thickness
of the chip) of these panels on the powers and cutting pressures, but also the connection of these
efforts with the variation of the roughness of surface of area machined, represented by the
average deviation Ra which takes account of the arithmetic mean of the roughnesses detected
along a measured profile.
Keywords: Machining. Roughness. Wood Composites. Density. Efforts of cut. Power of cut.
1. INTRODUCTION
Work undertaken called upon two techniques of studies of the properties of the composites, one
mechanical, of simulation of milling (toupillage) and measurement of physical surface quality,
the other of analysis of the density of the panels.
The composites tested are:
Medium: panels fibres 16 mm (MDF 16)
Novoplac: panels particles 16 mm (16 1N P2)
Barapan: panels particles 16 mm (16 2n L2)
Novoplac: panels particles 16 mm codes P (16 3n P2)
Novoplac: panels particles 14 mm (14 3c P2)
Triply OSB: panels CH particles 10 mm code NP (CH 10NP).
The main part of the results was given to us by these two methods used concurently, and we
calculated the correlations between the sets of data of the one and the other method. The
examined samples can only be of small dimensions (16 mm, 30 mm, 130 mm).
This is why, this phase is called simulation of machining.
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