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Cutting parameters effects on the machining of two high density polyethylene pipes resins

Cutting parameters effects on HDPE machining

Published online by Cambridge University Press:  04 December 2012

Mounia Kaddeche ,
Kamel Chaoui  and
Mohamed Athmane Yallese
Mounia Kaddeche*
Affiliation:
Laboratoire de Recherche Mécanique des Matériaux et Maintenance Industrielle (LR3MI of UBM Annaba), Mechanical Engineering Department, 8 May 1945 University of Guelma, PO Box 401, Guelma 24000, Algeria
Kamel Chaoui
Affiliation:
Laboratoire de Recherche Mécanique des Matériaux et Maintenance Industrielle (LR3MI), Mechanical Engineering Department, Badji Mokhtar University of Annaba, PO Box 12, Annaba 23000, Algeria
Mohamed Athmane Yallese
Affiliation:
Laboratoire de Mécanique et des Structures (LMS), Mechanical Engineering Department, 8 May 1945 University of Guelma, PO Box 401, Guelma 24000, Algeria
*
a Corresponding author:mkaddeche@yahoo.fr
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Abstract

The market demand for machining and cutting of various plastics parts is in continuous increase. The aim of this study is to extract prediction laws for surface roughness, cutting forces and temperatures evolution during the machining of two polyethylene pipes grades (HDPE-100) and (HDPE-80). It was found that feed rate is the most prevailing factor on roughness criteria and that better surfaces are obtained during the machining of the harder HDPE-80 resin. Also, cutting speed improved surface quality for speeds up to 200 m.min-1 but the rising interface temperature caused surface damage and material rapid softening. Also, feed exponents, in mathematical models, were found to be 3 to 4 times higher than those of cutting speed and depth of cut. An increase in the cutting speed led to a gradual reduction for the 3 cutting forces components (Fr, Fa and Fv) with a dominance of the tangential force (Fv). As expected, the value of the depth of cut had a large influence on the temperature within the cutting zone. This temperature is slightly higher during the machining of HDPE-80 compared to that of HDPE-100 most probably because of hardness differences. The analysis of variance (ANOVA) was performed to check the adequacy of the mathematical models relating cutting parameters with roughness, cutting forces and global cutting zone temperature.

Keywords

Polyethylene pipemachiningcutting parameterssurface roughnesscutting forcesANOVAmathematical models
Type
Research Article
Information
Mechanics & Industry , Volume 13 , Issue 5 , 2012 , pp. 307 - 316
Copyright
© AFM, EDP Sciences 2012

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