Flank wear characteristics of WC-Co tools when turning Alloy 718 with high-pressure coolant supply
Artikel i vetenskaplig tidskrift, 2017

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.

Wear mechanisms

Erosion

Alloy 718

High-pressure jet assisted machining

Co-capping

Cemented tungsten carbide

Författare

Philipp Hoier

Industri- och materialvetenskap

Uta Klement

Industri- och materialvetenskap

Nageswaran Tamil Alagan

Hogskolan Vast

Tomas Beno

Hogskolan Vast

Anders Wretland

GKN Aerospace

Journal of Manufacturing Processes

1526-6125 (ISSN)

Vol. 30 116-123

Ämneskategorier

Tribologi

Bearbetnings-, yt- och fogningsteknik

Metallurgi och metalliska material

Styrkeområden

Produktion

Materialvetenskap

DOI

10.1016/j.jmapro.2017.09.017