Hdl Handle:
http://hdl.handle.net/10149/98833
Title:
Wear mechanisms of ultra-hard cutting tools materials
Authors:
Nabhani, F. (Farhad)
Affiliation:
University of Teesside. School of Science and Technology.
Citation:
Nabhani, F. (2001) 'Wear mechanisms of ultra-hard cutting tools materials', Journal of Materials Processing Technology, 115 (3), pp.402-412.
Publisher:
Elsevier
Journal:
Journal of Materials Processing Technology
Issue Date:
24-Sep-2001
URI:
http://hdl.handle.net/10149/98833
DOI:
10.1016/S0924-0136(01)00851-2
Abstract:
Two experimental techniques are used in the investigation of cubic boron nitride (CBN) and polycrystalline diamond (PCD) as cutting tool materials for titanium alloy workpieces, in comparison with the currently used coated tungsten carbide specifications. One employs a quasi-static contact method to establish the temperature above which marked adhesion and welding occurs between the tool and the workpiece materials. After separation, the mode of failure of the welded junctions is studied to establish the path of crack propagation. The critical temperatures are shown to be 740, 760 and 900°C for the carbide, PCD and CBN tools, respectively, and in all cases failure of the junctions occurs in the bulk of the tool material. The other method used is the 'quick-stop' technique, under otherwise normal cutting conditions, to study chip formation and tool wear. The predominant wear mechanisms are identified and discussed for each of the tool materials and reasons advanced for observed differences in performance when removing the material from a titanium alloy workpiece. The wear resistance and quality of the machined surface is observed to be consistently better with the ultra-hard materials than with the carbide, and in particular, the PCD tool produces exceptionally good surface finish. In the case of the carbide tool, the rapid removal of the coated layers, leaving the substrate vulnerable to reaction with the workpiece material, is seen as contributing to its relatively poor performance.
Type:
Article
Language:
en
Keywords:
carbide tools; cubic boron nitride; polycrystalline diamond; titanium alloys; wear mechanism
ISSN:
0924-0136
Rights:
Author can archive post-print (ie final draft post-refereeing). For full details see http://www.sherpa.ac.uk/romeo/ [Accessed 14/05/2010]
Citation Count:
34 [Scopus, 14/05/2010]

Full metadata record

DC FieldValue Language
dc.contributor.authorNabhani, F. (Farhad)en
dc.date.accessioned2010-05-14T08:47:45Z-
dc.date.available2010-05-14T08:47:45Z-
dc.date.issued2001-09-24-
dc.identifier.citationJournal of Materials Processing Technology; 115(3):402-412en
dc.identifier.issn0924-0136-
dc.identifier.doi10.1016/S0924-0136(01)00851-2-
dc.identifier.urihttp://hdl.handle.net/10149/98833-
dc.description.abstractTwo experimental techniques are used in the investigation of cubic boron nitride (CBN) and polycrystalline diamond (PCD) as cutting tool materials for titanium alloy workpieces, in comparison with the currently used coated tungsten carbide specifications. One employs a quasi-static contact method to establish the temperature above which marked adhesion and welding occurs between the tool and the workpiece materials. After separation, the mode of failure of the welded junctions is studied to establish the path of crack propagation. The critical temperatures are shown to be 740, 760 and 900°C for the carbide, PCD and CBN tools, respectively, and in all cases failure of the junctions occurs in the bulk of the tool material. The other method used is the 'quick-stop' technique, under otherwise normal cutting conditions, to study chip formation and tool wear. The predominant wear mechanisms are identified and discussed for each of the tool materials and reasons advanced for observed differences in performance when removing the material from a titanium alloy workpiece. The wear resistance and quality of the machined surface is observed to be consistently better with the ultra-hard materials than with the carbide, and in particular, the PCD tool produces exceptionally good surface finish. In the case of the carbide tool, the rapid removal of the coated layers, leaving the substrate vulnerable to reaction with the workpiece material, is seen as contributing to its relatively poor performance.en
dc.language.isoenen
dc.publisherElsevieren
dc.rightsAuthor can archive post-print (ie final draft post-refereeing). For full details see http://www.sherpa.ac.uk/romeo/ [Accessed 14/05/2010]en
dc.subjectcarbide toolsen
dc.subjectcubic boron nitrideen
dc.subjectpolycrystalline diamonden
dc.subjecttitanium alloysen
dc.subjectwear mechanismen
dc.titleWear mechanisms of ultra-hard cutting tools materialsen
dc.typeArticleen
dc.contributor.departmentUniversity of Teesside. School of Science and Technology.en
dc.identifier.journalJournal of Materials Processing Technologyen
ref.citationcount34 [Scopus, 14/05/2010]en
or.citation.harvardNabhani, F. (2001) 'Wear mechanisms of ultra-hard cutting tools materials', Journal of Materials Processing Technology, 115 (3), pp.402-412.-
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