Influence of abrasive grain geometry on friction coefficient and wear rate in belt finishing

Authors :: Benjamin Hagege
A. Jourani
Hassan Zahouani
Maxence Bigerelle
Salima Bouvier
Université de Technologie de Compiègne (UTC)
Laboratoire de Mécanique des Systèmes et des Procédés (LMSP)
Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)
Laboratoire de Tribologie et Dynamique des Systèmes (LTDS)
École Centrale de Lyon (ECL)
Université de Lyon-Université de Lyon-École Nationale des Travaux Publics de l'État (ENTPE)-Ecole Nationale d'Ingénieurs de Saint Etienne-Centre National de la Recherche Scientifique (CNRS)
Source :: Tribology International, Tribology International, Elsevier, 2013, 59, pp.30-37. ⟨10.1016/j.triboint.2012.07.001⟩
Publication Year :: 2013
Publisher :: Elsevier BV, 2013.
Abstract: We focus our study on belt finishing process using a 3D model with multi-asperity abrasive wear on real rough surfaces. The established model allows determining the effect of the local geometry of abrasive grain on the friction coefficient and wear rate. This study shows that the friction coefficient and wear rate increase with the local slopes of the roughness. With the increase of the macroscopic normal load, the wear rate increases rapidly. Such effect is related to the increase of the cutting force of each grain leading to the transition in dominant wear mode from ploughing to wedging and cutting.

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