Future of the discrete element method in the modelling of grinding wheels
The granular structure of the grinding wheel determines remarkably its performance when grinding. Nowadays grinding wheels are man-made porous conglomerates of hard abrasive grains bonded with a binder. The dressed surface of the wheel is the responsible of the material removal when interacting with...
| Autores: | , , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2018 |
| País: | España |
| Institución: | Universidad del País Vasco |
| Repositorio: | Addi. Archivo Digital para la Docencia y la Investigación |
| OAI Identifier: | oai:addi.ehu.eus:10810/72041 |
| Acceso en línea: | http://hdl.handle.net/10810/72041 |
| Access Level: | acceso abierto |
| Palabra clave: | Grinding Dressing Discrete element method (DEM) Representative volume element (RVE) Homogenisation Wear |
| Sumario: | The granular structure of the grinding wheel determines remarkably its performance when grinding. Nowadays grinding wheels are man-made porous conglomerates of hard abrasive grains bonded with a binder. The dressed surface of the wheel is the responsible of the material removal when interacting with the workpiece. The behaviour of the surface is conditioned by the morphology and properties of the abrasive grits, the binder resistance and the porous network. As an engineered material, it would be interesting to foresee the behaviour of the wheel, but it is hindered under its complex heterogeneous nature. Recently, some models based on the discrete element method (DEM) have been presented to model the grinding wheel. This paper describes the characteristics that should take into account such models. In addition, it introduces the promising new applications that open the DEM in the modelling of grinding, specially in matters of granular structure, topography and wear behaviour. |
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