RT conference output
T1 SOM-SEM-EDS identification of tool wear mechanisms in the dry-machining of aerospace titanium alloys
A1 Álvarez Alcón, Miguel
A1 Gómez Parra, Álvaro
A1 Salguero Gómez, Jorge
A1 Batista Ponce, Moisés
A1 Huerta Gómez de Merodio, Milagros
A1 Marcos Bárcena, Mariano
A2 Ingeniería Mecánica y Diseño Industrial
K1 Dry-Machining
K1 Sustainable Manufacturing
K1 Tool Wear
K1 Ti6Al4V
K1 Ti6Al4V
K1 SOM-SEM-EDS
AB Titanium based alloys, mainly UNS R56400 (Ti6Al4V), are increasingly being applied in the airship building industry due to its excellent physicochemical properties. Machining operations are usually required in the manufacturing processes of Ti based aerospace structural elements. However, high reactivity of Ti provokes a quick tool wear. So, in order to reach an economically acceptable production level, it is necessary to minimize the costs associated to tool wear. In this work, Scanning Electron Microscopy (SEM), Stereoscopic Optical Microscopy (SOM) and Energy Dispersive Spectroscopy (EDS) have been used for both analysing and identifying secondary adhesion mechanisms that are taking place when an aeronautical titanium alloy is machined. Special severe cutting conditions have been applied. Thus, titanium alloy have been dry machined with TiN coated WC-Co tools. Results obtained have shown that tool wear is controlled by a secondary adhesion mechanism, which presents two stages. A first stage is constituted by a TiOx multi-film formed onto the tool surfaces. A second step involves the mechanical adhesion of the alloy material to those surfaces. When this material is removed, tool particles are dragged off causing tool wear.
PB Trans Tech Publications, Switzerland
SN 9780878492770
SN 1022-6680
YR 2010
FD 2010
LK http://hdl.handle.net/10498/38476
UL http://hdl.handle.net/10498/38476
LA eng
NO The development of this work has been supported by the Spanish Government, Project DPI2008-06771-C04-01and by the Andalusian Government.
DS Repositorio Institucional de la Universidad de Cádiz
RD 06-nov-2026