Machining cobalt-based dental alloys with tungsten carbide mills

aut.relation.issueNo 2
aut.relation.volumeVol 20
aut.researcherPasang, Timotius
dc.contributor.authorTakahashi, M
dc.contributor.authorPasang, T
dc.contributor.authorConor, P
dc.contributor.authorOno, H
dc.contributor.authorTanaka, K
dc.description.abstractMilling characteristics of dental alloys have been investigated and compared. The four differently configured tools used were made of cemented tungsten carbide. Most were uncoated but one was coated with a diamond-like carbon layer. The dental alloys studied were cobalt-chrome (Co-Cr) and cobalt-chrome-titanium (Co-Cr-Ti) alloys, fairly strong alloys. There is a requirement for a reliable test to evaluate the properties of dental tools by measuring the cutting forces during milling. A full characterization of dental mills is a difficult task, because the geometry of the mills is complex, with conical multi-cutting surfaces. In this study a more comprehensive understanding of the effects of cutting rate on cutting forces was achieved by varying the tool cutting speed and measuring the force on the workpiece as it was driven into the rotating tool at a fixed feed velocity. It was observed that the cutting forces were changed by varying cutting speeds. Side milling required lower forces than central slot milling. After milling the surfaces of the dental tools and dental alloy specimen were analyzed by scanning electron microscopy.
dc.identifier.citationInternational Journal of the Society of Materials Engineering for Resources, vol.Vol 20(No 2)
dc.publisherThe Society of Materials Engineering for Resources of Japan
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in (see Citation). The original publication is available at (see Publisher's Version).
dc.subjectDental mill
dc.subjectDental alloy
dc.subjectMilling characteristics
dc.subjectCutting forces
dc.titleMachining cobalt-based dental alloys with tungsten carbide mills
dc.typeJournal Article
pubs.organisational-data/AUT/Design & Creative Technologies
pubs.organisational-data/AUT/Design & Creative Technologies/School of Engineering
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