Title: A study on tool performance to determine the optimal cutting conditions for dry end milling of an aeroengine material: Ti-6242S

Authors: A. Ginting, M. Nouari

Addresses: Faculty of Engineering, Department of Mechanical Engineering, University of Sumatera Utara Jalan Almamater, 20155 Medan, North Sumatera, Indonesia. ' Laboratoire Matriaux Endommagement Fiabilit Ingnierie des Procds (LAMEFIP), ENSAM CER Bordeaux, Esplanade des Arts et Metiers, 33405 TALENCE cedex, France

Abstract: The present study deals with a study on the dry end milling of the titanium alloy Ti-6242S. From an extensive experimental work involving numerical simulations, the performance of the off-centre ball end milling alloyed carbide tool (W-(Ti/Ta/Nb)C-Co) has been analysed. Optimal cutting conditions have been found among cutting speed, Material Removal Rate (MRR) and tool life. Also, it has been established that tool failure modes, tool wear mechanisms and tool performance change for each optimal combination of cutting conditions. The chip morphology, the tool-chip contact length, and all tribological parameters (temperature, pressure, etc.) involved for each optimal cutting condition have been evaluated.

Keywords: dry machining; Ti-6242S; FEM; finite element method; simulation; material removal rate; MRR; tool life; tribological parameters; tool performance; cutting conditions; dry end milling; aeroengine materials; titanium alloys; carbide tooling; tool failure modes; tool wear; optimisation.

DOI: 10.1504/IJMPT.2008.018020

International Journal of Materials and Product Technology, 2008 Vol.31 No.2/3/4, pp.202 - 213

Published online: 27 Apr 2008 *

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