Title: Experimental study of orthogonal cutting of unidirectional CFRP laminates

Authors: Florent Blanchet; Frédéric Lachaud; Robert Piquet; Yann Landon

Addresses: Institut Clément Ader (ICA), Université de Toulouse, ISAE-SUPAERO, INSA, IMT MINES ALBI, UTIII, CNRS, 3 Rue Caroline Aigle, 31400 Toulouse, France ' Institut Clément Ader (ICA), Université de Toulouse, ISAE-SUPAERO, INSA, IMT MINES ALBI, UTIII, CNRS, 3 Rue Caroline Aigle, 31400 Toulouse, France ' Institut Clément Ader (ICA), Université de Toulouse, ISAE-SUPAERO, INSA, IMT MINES ALBI, UTIII, CNRS, 3 Rue Caroline Aigle, 31400 Toulouse, France ' Institut Clément Ader (ICA), Université de Toulouse, ISAE-SUPAERO, INSA, IMT MINES ALBI, UTIII, CNRS, 3 Rue Caroline Aigle, 31400 Toulouse, France

Abstract: This article relates to the study of orthogonal cutting of unidirectional carbon epoxy composite laminates T800S/M21 with tool angle influences. Many positive and negative values of the cutting angle (γ) and of the angle χ2 defined by the direction of the cutting speed and the fibres direction of the workpiece are used. Then, this papers focus on the study of the cutting mechanisms, the chip morphology (its mode of formation and its shape), and the surface quality obtained according to the cutting forces evolution. Finally, study explains angle influence on surface roughness.

Keywords: CFRP; drilling; orthogonal cutting; machining; planning; cutting angle; fibre orientation; surface topology; confined plies; unidirectionnal; damage; sub-surface damage.

DOI: 10.1504/IJMMM.2020.111351

International Journal of Machining and Machinability of Materials, 2020 Vol.22 No.6, pp.454 - 486

Received: 20 Aug 2019
Accepted: 21 Dec 2019

Published online: 23 Nov 2020 *

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