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Title: Effect of machining parameters on the mechanical properties of high dosage short –carbon- fiber reinforced composites
Authors: Ferreira, J. A. M. 
Oliveira, S. E. 
Silva, J. 
Capela, Carlos 
Keywords: Mechanical properties; Short fiber composites; Machinability of composites
Issue Date: 2019
Publisher: Gruppo Italiano Frattura
Project: FEDER funds through the program COMPETE – Programa Operacional Factores de Competitividade – and by national funds through FCT – Fundação para a Ciência e a Tecnologia –, under the project PEst-C/EME/UI0285/2013 
Brazilian agency CNPq, Conselho Nacional de Desenvolvimento Ciêntifico e Tecnológico, CsF 
Serial title, monograph or event: Frattura ed Integrita Strutturale
Volume: 13
Issue: 48
Abstract: The machinability of polymer matrix composites with fibers strongly depends on the type of fiber and dosage in question, having a high influence on the selection of tools and cutting parameters. The cutting temperature depends of rotation speed and the feed cutting tools and is significantly influencing on the quality of the machined surfaces and tool life. This paper presents the results of a current study concerning the effect of the rotation-cutting speed on the cutting temperature, roughness and tensile strength of short carbon fiber reinforced epoxy composites, potentially used in automotive and aeronautic industries. Composite plates were manufactured by compression molding, using short carbon fibers with 0.5 mm and 6 mm length. The increasing of the rotation-cutting speed increases significantly the temperature generated in the tool and slightly increases surface roughness. Tensile strength and Young´s modulus are little sensitive to drilling speed. However, above 3000 rpm it was observed significant loss of stiffness, associated with the developed temperature in the machining process.
ISSN: 19718993
DOI: 10.3221/IGF-ESIS.48.26
Rights: openAccess
Appears in Collections:I&D CEMMPRE - Artigos em Revistas Internacionais

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