Guilhem Mollon ; Wear of diamond tools for rock-cutting

Wear of diamond tools for rock-cutting

This industrial collaboration is dedicated to the numerical simulation of the wear of the metallic matrices holding diamonds in cutting-tools (used for rock or concrete). These matrices are submitted to a continuous flow of the granular debris of the cut rock, and their abrasion progressively leads to the diamond failure. In order to improve our understanding of this phenomenon, we work at several scales: the segment of the cutting tool, the diamond (hydro-dynamic modelling by equivalent fluid), the interface (multibody meshfree simulation), and the microstructure of the matrix.

Fig1

Figure 1. Local model of the interface, comprising (from bottom to top) a deformable metallic substrate, a deformable and degradable microstructure, a granular bed, and a rigid loading system.

Fig2

Figure 2. Stress field in the damageable part of the matrix, and progressive matter removal by the granular flow.

Publications

Articles in international journals

41. Quacquarelli, A., Mollon, G., Commeau, T., and Fillot, N. (2023). “Combining Discrete and Continuum Mechanics to Investigate Local Wear Processes Induced by an Abrasive Particle Flow”, Tribology International, 179, 108126

34. Quacquarelli, A., Mollon, G., Commeau, T., and Fillot, N. (2021). "A dual numerical-experimental approach for modeling wear of Diamond Impregnated Tools", Wear, Accepted

International conferences

54. Quacquarelli, A., Mollon, G., Fillot, N., Commeau, T., and Nouveau, A. (2021). “Scratch resistance and ear of metal-bonded diamond tools“,14th World Congress in Computational Mechanics (WCCM), ECCOMAS, 19-24 July 2020, Paris, France, held online

52. Quacquarelli, A., Mollon, G., Fillot, N., Commeau, T., and Nouveau, A. (2020). “A multi-scale strategy for wear modeling of diamond tools“, STLE Tribology Frontiers Conferences, November 8-11, 2020, Cleveland, USA

45. Quacquarelli, A., Mollon, G., Fillot, N., Commeau, T., and Nouveau, A. (2019). “Experimental and numerical investigation on the wear of microsctructure of diamond impregnated tools for cutting concrete“, 46th Leeds-Lyon Syposium on Tribology, 3rd of September 2019, Lyon, France

42. Quacquarelli, A., Mollon, G., Commeau, T., Nouveau, A., and Fillot, N. (2019). “Modélisation multi-échelles de l’usure d’outils diamantés pour la découpe de la pierre“, Journées Internationales Francophones de Tribologie 2019, 25th of April 2019, Tours, France

36. Quacquarelli, A., Fillot, N., Mollon, G., Commeau, T., and Nouveau, A. (2018). “A novel multiscale framework for modeling of diamond tools wear”, Multiscale Modelling of Materials, 29th of October 2018, Osaka, Japan

29. Mollon, G., Massa, S., Fillot, N., Commeau, T., and Nouveau, A. (2017). “Numerical simulation of the wear of stone-cutting tools by a multibody meshfree approach”, 2nd African Conference on Tribology, 19th of April 2017, Marrakech, Morocco

Wear of diamond tools for rock-cutting

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Publications

Articles in international journals

International conferences

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