Title:
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Fabrication and tribological performance of a laser-textured hardmetal guiding stone for honing processes
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Author:
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Fang, Shiqi; Klein, Sven; Hsu, Chia-Jui; Llanes Pitarch, Luis Miguel; Gachot, C; Bähre, Dirk
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Other authors:
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Universitat Politècnica de Catalunya. Departament de Ciència i Enginyeria de Materials; Universitat Politècnica de Catalunya. CIEFMA - Centre d'Integritat Estructural, Micromecànica i Fiabilitat dels Materials |
Abstract:
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Honing is often implemented as surface finish process by improving geometrical and form precision of workpieces. Guiding stones, usually made of hard materials with requirement of excellent tribological properties, play
a key role as a supporting part in the honing tool. In this paper, cemented carbides are intended for guiding
application as substitute of diamond or CBN composites. Innovative surface textures, namely crossing-line
patterns and dimple arrays, are fabricated by means of short pulse laser on a cemented tungsten carbide
(hardmetal) grade. Implementation of these processing conditions yields satisfactory geometrical accuracy. The
cemented carbide stones patterned by laser together with a traditional diamond guiding stone were tested on a
lubricated pin-on-disc tribometer. Both cross-line patterns or dimple arrays are found to improve frictional
conditions compared to the traditional guiding stone, but the former are more favorable to build up a stable
sliding scenario with minimized friction than the latter. Pattern density has a more significant impact on friction,
diminishing in the case of dimple arrays. |
Abstract:
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Peer Reviewed |
Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria dels materials -Honing -Brunyiment |
Rights:
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Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
Document type:
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Article - Submitted version Article |
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