Experimental study of magnesium drilling based on the surface quality

Agustina, Beatriz de, Berzosa Lara, Fernando, Rubio, Eva María y Marín, Marta Maria . (2019) Experimental study of magnesium drilling based on the surface quality. Procedia CIRP (2019) 79, p.74–78

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Título Experimental study of magnesium drilling based on the surface quality
Autor(es) Agustina, Beatriz de
Berzosa Lara, Fernando
Rubio, Eva María
Marín, Marta Maria
Materia(s) Informática Industrial
Abstract Nowadays, the use of magnesium and its alloys for transport applications is based on the combination of high mechanical properties and low density. In general, the machinability of these materials is considered to be good. Nevertheless, it has been reported that the machining of these alloys involves some critical problems regarding their tendency to be flammable at high temperatures and consequently, there is a risk of chip ignition in the working area during the process. This fact is especially critical when the size of chips is reduced. In this study, the influence of cutting conditions on surface roughness, in terms of Ra, obtained by drilling of magnesium alloy (AZ91D-F) was carried out. A factorial design 2 4 was employed for the planning of the drilling tests. The factors considered were the feed rate (0.05 and 0.2 mm/r), cutting speed, 40 and 60 m/min, the type of tool, in particular, the point angle of 118º and 135º, and the cooling system, Dry conditions and MQL (Minimum Quantity Lubrication) system. As main conclusions it can be affirmed that improved surface roughness is obtained with the cutting conditions selected in this study. Furthermore, at 0.05 mm/r and 40 m/min the use of tools with a point angle of 135º provides lower values of Ra than the tool of 118º point angle. Slightly lower values of Ra are obtained with tools of 118º point angle at 0.2 mm/r and 60 m/min.
Palabras clave Magnesium alloys
Dry drilling
Minimum quantity lubrication
surface roughness
Factorial design
Editor(es) Elsevier
Fecha 2019
Formato application/pdf
Identificador bibliuned:DptoICyF-ETSI-Articulos-Fberzosa-0003
http://e-spacio.uned.es/fez/view/bibliuned:DptoICyF-ETSI-Articulos-Fberzosa-0003
DOI - identifier https://doi.org/10.1016/j.procir.2019.02.014
ISSN - identifier 2212-8271
Nombre de la revista Procedia
Número de Volumen 79
Página inicial 74
Página final 78
Publicado en la Revista Procedia CIRP (2019) 79, p.74–78
Idioma eng
Versión de la publicación publishedVersion
Tipo de recurso Article
Derechos de acceso y licencia http://creativecommons.org/licenses/by-nc-nd/4.0
info:eu-repo/semantics/openAccess
Tipo de acceso Acceso abierto
Notas adicionales La versión registrada de este artículo, publicado por primera vez en Procedia CIRP (2019) 79, p.74–78, está disponible en línea en el sitio web del editor: Elsevier https://doi.org/10.1016/j.procir.2019.02.014
Notas adicionales The registered version of this article, first published in Procedia CIRP (2019) 79, p.74–78, is available online at the publisher's website: Elsevier https://doi.org/10.1016/j.procir.2019.02.014

 
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Creado: Wed, 10 Apr 2024, 15:49:57 CET