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

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© European Journal of Scientific Research, Vol 7, No 5, 2005 European Journal of Scientific Research Vol. 7, No: 5 CONTENTS CONNECTIONS BETWEEN CUTTING PRESSURES, DENSITY AND SURFACE QUALITIES OF SOME WOOD CONTAINING COMPOSITES A. ZERIZER, P. MARTIN PIXE MICROANALYSIS OF MUSCOVITE SAMPLES FROM TOURMALINE BEARING GRANITE PEGMATITES OF SOUTHWESTERN NIGERIA O. A. IGE, S.O.OLABANJI, D. CECCATOB A COMPARATIVE APPROACH TO SECURITY: THE EUROPEAN UNION AND THE GULF COOPERATION COUNCIL MAZEN K. GHARAIBEH VISUAL OUTCOME OF TRAUMATIC CATARACTS CO BEKIBELE, O FASINA COMPARATIVE EFFECTS OF α-TOCOPHEROL AND γ-TOCOTRIENOL ON LIPID PEROXIDATION STATUS IN HEP G2 CELL LINE TRANSFECTED WITH CYP2E1 GENE SUZANA MAKPOL, SUHANA MAMAT, ZALINAH AHMAD, GAPOR MD. TOPB, AND WAN ZURINAH WAN NGAH TOTAL QUALITY IN HIGHER EDUCATION: THE CASE OF CYPRUS BILGE ONEY SPATIAL/TEMPORAL MODEL FOR SURVIVABILITY OF PEA LEAFMINER (LIRIOMYZA HUIDOBRENSIS) IN WARM CLIMATES: A CASE STUDY IN SOUTH FLORIDA, USA KATHERINE MILLA, STUART REITZ FOOD CONSUMPTION PATTERN AND HOUSEHOLD FOOD INSECURITY IN TWO COMMUNITIES IN IBADAN, OYO STATE. NIGERIA SANUSI RA, MANYONG VM, AKINYELE IO, BAMIRE ASA, OGINNI AB
© 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. 5
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