Flank wear characteristics of WC-Co tools when turning Alloy 718 with high-pressure coolant supply

In the present study, the tool wear mechanisms of uncoated cemented tungsten carbide (WC-Co) tools during machining Alloy 718 with high-pressure coolant supply are investigated. Worn flank faces are analyzed by scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX). With i...

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Bibliographic Details
Published inJournal of manufacturing processes Vol. 30; no. Supplement C; pp. 116 - 123
Main Authors Hoier, Philipp, Klement, Uta, Tamil Alagan, Nageswaran, Beno, Tomas, Wretland, Anders
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.12.2017
Subjects
Alloy 718
Cemented tungsten carbide
Co-capping
Erosion
High-pressure jet assisted machining
Manufacturing and materials engineering
Production Technology
Produktions- och materialteknik
Produktionsteknik
Wear mechanisms
Wear mechanisms
Alloy 718
Co-capping
High-pressure jet assisted machining
Cemented tungsten carbide
Erosion
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Summary:In the present study, the tool wear mechanisms of uncoated cemented tungsten carbide (WC-Co) tools during machining Alloy 718 with high-pressure coolant supply are investigated. Worn flank faces are analyzed by scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX). With increasing spiral cutting length, larger areas on the tool surface are subjected to erosion of Co-binder by the coolant jet impact. Moreover, the amount and morphology of workpiece-precipitates adhered on worn flank surfaces are influenced significantly by the extent of flank wear land (due to increasing spiral cutting length). The reasons for the obtained results are addressed with respect to the underlying mechanisms. Possible implications for the tool wear behavior are discussed.
ISSN:1526-6125
2212-4616
2212-4616
DOI:10.1016/j.jmapro.2017.09.017