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Identification of friction coefficient between uncoated carbide tool and Ti-6Al-4V alloy under different lubrication conditions
FERSI Achraf, AYED Yessine, LAVISSE Bruno, GERMAIN Guénaël
download PDFAbstract. During machining, the friction between the tool and the workpiece (cutting face and flank face) is a significant tribological phenomenon because it strongly influences the cutting operation. Indeed, higher friction leads to an increase of cutting forces, a greater heat generation, a premature tool wear and a surface degradation. This study focuses on tool (WC/Co)/workpiece (Ti-6Al-4V) friction under different cooling conditions (dry, emulsion, cryogenic). Determining the friction coefficient requires numerical simulations to separate the tribological phenomena. For this purpose, several modeling methods are compared (Lagrangian, CEL, and ALE). Experimental tests revealed that the friction coefficient depends not only on the sliding velocity but also on lubrication modes. Specifically, the lowest friction coefficient is obtained under cryogenic condition. Adhesive phenomena on the WC/Co pin are observed in the friction zone, particularly at high sliding velocities.
Keywords
Friction Coefficient, Cryogenic Condition, Titanium Alloy, Adhesion, Numerical Simulation
Published online 4/24/2024, 10 pages
Copyright © 2024 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: FERSI Achraf, AYED Yessine, LAVISSE Bruno, GERMAIN Guénaël, Identification of friction coefficient between uncoated carbide tool and Ti-6Al-4V alloy under different lubrication conditions, Materials Research Proceedings, Vol. 41, pp 1990-1999, 2024
DOI: https://doi.org/10.21741/9781644903131-220
The article was published as article 220 of the book Material Forming
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
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