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Surface integrity while trimming of composite structures: X-ray tomography analysis

Abstract : The aim of this paper is to study the influence of the process parameters (cutting speed and feed) of the conventional trimming on cutting forces, machining temperatures, tool wear and machining quality of Carbon Fibers Reinforced Plastics (CFRP) using PCD tool. The machining quality was characterized using three different techniques such as Scanning Electron Microscopy (SEM), 3D optical topography and X-ray tomography. The originality of this work is based mainly on the multi-scale characterization of the machined surfaces. In fact, a new parameter based on the measurement of the volume of craters is proposed and compared to the surface roughness criterion (Sa) and the X-ray tomography images. The obtained results show that, with the crater volume criterion as well as the X-ray tomography images, the effect of the machining parameters and the wear of the tool on the textured surfaces are well correlated to surface roughness criterion (Sa). In addition, it was observed that the feed speed and tool wear were the major factors affecting the cutting forces and the machining temperatures.
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Submitted on : Monday, February 4, 2019 - 2:18:26 PM
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N. Nguyen-Dinh, Redouane Zitoune, Christophe Bouvet, Sabine Le Roux. Surface integrity while trimming of composite structures: X-ray tomography analysis. Composite Structures, Elsevier, 2019, 210, pp.735-746. ⟨10.1016/j.compstruct.2018.12.006⟩. ⟨hal-01969389⟩



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