Mathieu, Ronan, Charfi, Mohamed Ali, Chatelain, Jean-François, Ouellet-Plamondon, Claudiane, Serra, Roger et Lebrun, Gilbert.
2022.
« Effect of graphene additive on cutting forces and temperature during the trimming process of CFRP ».
International Journal of Advanced Manufacturing Technology, vol. 122, nº 9-10.
pp. 3969-3981.
Compte des citations dans Scopus : 4.
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Résumé
Carbon Fiber Reinforced Polymer (CFRP) composite materials are massively used since the last decades in many contemporary applications, especially in aerospace for their strength to density and stiffness to density ratios which are higher than alloys. On the other hand, CFRP are known to be difficult to machine compared to metals due to their heterogeneous and anisotropic structure. Common damages like delamination, fiber loosening and pull out, uncut fibers as well as mechanical and thermal damages to the epoxy matrix are observed after machining. This research studies the effect of graphene particles addition in epoxy matrix of CFRP on the cutting temperature, in a global objective of improving the machinability and cutting tool life. Thereby, four modified resin plates (0 %wt, 0,25 %wt, 3 %wt and 10 %wt of graphene) without carbon fibers (nanocomposite plates only) were first molded. Next, three CFRP laminates with different percentages of graphene (0 %wt 0,25 %wt and 3 %wt) were manufactured using a combination of vacuum bagging and hydraulic pressing in order to guarantee a good fillers’ distribution within the composite plates and a consistent fiber volume fraction. The trimming experiments were performed using a Polycrystalline Diamond (PCD) tool which was selected for its wellknown machining performance. As expected, the tool wear was nonexistent on nanocomposites. For CFRP plates, the tool wear remained in its break-in zone throughout the experiment (final Vb ▯ 0,051 ≪ 0,3 ▯▯ for a final length cut of 4,5 m). The cutting tool’s temperature increases with graphene concentration for both nanocomposites and CFRP samples. However, the temperature increase of CFRP plates was reduced by 30% with a graphene concentration of 3 %wt. The feed forces were also greatly reduced (up to 43%) with graphene when machining CFRP.
| Type de document: | Article publié dans une revue, révisé par les pairs |
|---|---|
| Professeur: | Professeur Chatelain, Jean-François Ouellet-Plamondon, Claudiane |
| Affiliation: | Génie mécanique, Génie de la construction |
| Date de dépôt: | 05 oct. 2022 16:41 |
| Dernière modification: | 21 janv. 2025 18:20 |
| URI: | https://espace2.etsmtl.ca/id/eprint/25588 |
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