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Investigation of the wear mechanism of cubic boron nitride tools used for the machining of compacted graphite iron and grey cast iron

Gastel, Michael ; Konetschny, C. ; Reuter, U. ; Fasel, C. ; Schulz, Herbert ; Riedel, R. ; Ortner, H. M. :
Investigation of the wear mechanism of cubic boron nitride tools used for the machining of compacted graphite iron and grey cast iron.
In: Journal of refractory metals & hard materials, 18 (6) pp. 287-296.
[Artikel], (2001)

Kurzbeschreibung (Abstract)

Various experiments were performed to investigate the wear mechanism of cubic boron nitride (cBN) tools used for the machining of compacted graphite iron (CGI). Comparative studies for tools used to machine grey cast iron (CI) were also performed in order to find out why in this case the tool lifetime is significantly higher. Two main effects were found that are responsible for tool wear, namely: (1) oxidation of the tool, and (2) interdiffusion of constituting elements between tool and CGI. These wear mechanisms are more or less the same for the machining of CGI and grey CI. The difference in tool lifetime can be explained by the formation of a MnS layer on the tool surface in the case of grey CI. This layer is missing in the case of CGI. The MnS layer acts as a lubricant and as a diffusion barrier and is the reason for the reduced wear in the case of grey CI.

Typ des Eintrags: Artikel
Erschienen: 2001
Autor(en): Gastel, Michael ; Konetschny, C. ; Reuter, U. ; Fasel, C. ; Schulz, Herbert ; Riedel, R. ; Ortner, H. M.
Titel: Investigation of the wear mechanism of cubic boron nitride tools used for the machining of compacted graphite iron and grey cast iron
Sprache: Englisch
Kurzbeschreibung (Abstract):

Various experiments were performed to investigate the wear mechanism of cubic boron nitride (cBN) tools used for the machining of compacted graphite iron (CGI). Comparative studies for tools used to machine grey cast iron (CI) were also performed in order to find out why in this case the tool lifetime is significantly higher. Two main effects were found that are responsible for tool wear, namely: (1) oxidation of the tool, and (2) interdiffusion of constituting elements between tool and CGI. These wear mechanisms are more or less the same for the machining of CGI and grey CI. The difference in tool lifetime can be explained by the formation of a MnS layer on the tool surface in the case of grey CI. This layer is missing in the case of CGI. The MnS layer acts as a lubricant and as a diffusion barrier and is the reason for the reduced wear in the case of grey CI.

Titel der Zeitschrift, Zeitung oder Schriftenreihe: Journal of refractory metals & hard materials
Band: 18
(Heft-)Nummer: 6
Verlag: Elsevier
Freie Schlagworte: Compacted graphite iron, Grey cast iron, Wear, Cubic boron nitride tools
Fachbereich(e)/-gebiet(e): Fachbereich Material- und Geowissenschaften > Materialwissenschaften > Materialanalytik
Fachbereich Material- und Geowissenschaften > Materialwissenschaften > Disperse Feststoffe, Dispersive Solids
Fachbereich Maschinenbau
Fachbereich Maschinenbau > Produktionsmanagement, Technologie und Werkzeugmaschinen
Fachbereich Material- und Geowissenschaften > Materialwissenschaften
Fachbereich Material- und Geowissenschaften
Hinterlegungsdatum: 19 Nov 2008 16:27
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