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Titel: Wear Characterization of Cemented Carbides (WC–CoNi) Processed by Laser Surface Texturing under Abrasive Machining Conditions
VerfasserIn: Fang, Shiqi
Llanes, Luis
Bähre, Dirk
Sprache: Englisch
Titel: Lubricants
Bandnummer: 5
Heft: 3
Verlag/Plattform: MDPI
Erscheinungsjahr: 2017
Freie Schlagwörter: cemented carbide
laser surface texturing
abrasive machining
wear
surface integrity
DDC-Sachgruppe: 500 Naturwissenschaften
Dokumenttyp: Journalartikel / Zeitschriftenartikel
Abstract: Cemented carbides are outstanding engineering materials widely used in quite demanding material removal applications. In this study, laser surface texturing is implemented for enhancing, at the surface level, the intrinsic bulk-like tribological performance of these materials. In this regard, hexagonal pyramids patterned on the cutting surface of a tungsten cemented carbide grade (WC–CoNi) have been successfully introduced by means of laser surface texturing. It simulates the surface topography of conventional honing stones for abrasive application. The laser-produced structure has been tested under abrasive machining conditions with full lubrication. Wear of the structure has been characterized and compared, before and after the abrasive machining test, in terms of changes in geometry aspect and surface integrity. It is found that surface roughness of the machined workpiece was improved by the laser-produced structure. Wear characterization shows that laser treatment did not induce any significant damage to the cemented carbide. During the abrasive machining test, the structure exhibited a high wear resistance. Damage features were only discerned at the contacting surface, whereas geometrical shape of pyramids remained unchanged.
DOI der Erstveröffentlichung: 10.3390/lubricants5030020
Link zu diesem Datensatz: urn:nbn:de:bsz:291--ds-274805
hdl:20.500.11880/29487
http://dx.doi.org/10.22028/D291-27480
ISSN: 2075-4442
Datum des Eintrags: 5-Aug-2020
Fakultät: NT - Naturwissenschaftlich- Technische Fakultät
Fachrichtung: NT - Materialwissenschaft und Werkstofftechnik
Professur: NT - Prof. Dr. Dirk Bähre
Sammlung:SciDok - Der Wissenschaftsserver der Universität des Saarlandes

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