Title: Machinability and surface quality during high speed trimming of multi directional CFRP

Authors: Madjid Haddad; Redouane Zitoune; Florent Eyma; Bruno Castanié

Addresses: Institut Clément Ader (ICA), Université de Toulouse, INSA, UPS, Mines Albi, ISAE, 133c Avenue de Rangueil, 31077, Toulouse, France ' Institut Clément Ader (ICA), Université de Toulouse, INSA, UPS, Mines Albi, ISAE, 133c Avenue de Rangueil, 31077, Toulouse, France ' Institut Clément Ader (ICA), Université de Toulouse, INSA, UPS, Mines Albi, ISAE, IUT de Tarbes. Dept GMP. 1, rue Lautreamont, 65000 Tarbes, France ' Institut Clément Ader (ICA), Université de Toulouse, INSA, UPS, Mines Albi, ISAE, 135 Avenue de Rangueil, 31077 Toulouse, France

Abstract: In this paper, high speed trimming of a multidirectional CFRP using unused and used burr tools is considered in order to investigate the influence of the machining parameters (e.g., feed speed, cutting speed and cutting distance) on the cutting forces, machining temperature, and the machined surface quality. To estimate the effect of the tools' wear and cutting parameters on the cutting forces and surface roughness, a statistical method (ANOVA) has been used. When considering an unused tool, the recorded temperatures were below the glass transition temperature of the composite material (Tg). In the case of used tools, these temperatures were mostly higher than the Tg. Furthermore, SEM observations of the machined surface showed damaged areas. These areas were wider when the cutting distance increased. Statistical analyses have shown that the machining parameters have a significant influence on the variation of the machined surface quality and the cutting forces.

Keywords: high speed machining; multidirectional CFRP; high speed trimming; machining temperatures; surface quality; cutting forces; machinability; carbon fibre reinforced plastics; feedrate; cutting speed; cutting distance; surface roughness; ANOVA; composites.

DOI: 10.1504/IJMMM.2013.053229

International Journal of Machining and Machinability of Materials, 2013 Vol.13 No.2/3, pp.289 - 310

Received: 08 May 2021
Accepted: 12 May 2021

Published online: 12 Apr 2013 *

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