Effect of Process Parameters and Definition of Favorable Conditions in Multi-Material Extrusion of Bimetallic AZ31B–Ti6Al4V Billets

Fernández, Daniel, Rodríguez Prieto, Álvaro y Camacho, Ana María . () Effect of Process Parameters and Definition of Favorable Conditions in Multi-Material Extrusion of Bimetallic AZ31B–Ti6Al4V Billets. Applied Sciences (2020) 10-22, 8048

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Título Effect of Process Parameters and Definition of Favorable Conditions in Multi-Material Extrusion of Bimetallic AZ31B–Ti6Al4V Billets
Autor(es) Fernández, Daniel
Rodríguez Prieto, Álvaro
Camacho, Ana María
Materia(s) Ingeniería Mecánica
Abstract This paper investigates the extrusion process to manufacture bimetallic cylinders combining a magnesium alloy core (AZ31B) and a titanium alloy sleeve (Ti6Al4V) of interest in aeronautical applications. A robust finite element model has been developed to determine the most influential parameters and to study the effect of them on the extrusion force and damage induced by means of Design of Experiments (DOE) and Taguchi method. The results show that the most influential parameters in the extrusion forces are the friction between sleeve and container/die and the height of the cylinder; and the less influential ones are the process temperature and ram speed. Moreover, minimum values of forces along with low damage can be reached by favorable interface contact conditions, minimizing the friction at the core-container/die interface, as the main influencing factor; followed by the geometrical dimensions of the billet, being the billet height more important when paying attention to the minimum forces, and being the core diameter when considering the minimum damage as the most important criterion. The results can potentially be used to improve the efficiency of this kind of extrusion process and the quality of the extruded part that, along with the use of lightweight materials, can contribute to sustainable production approaches.
Palabras clave metal forming
extrusion
multi-material
bimetallic
AZ31B
Ti6Al4V
finite element method
DOE
force
damage
Editor(es) MDPI
Identificador bibliuned:DptoICyF-ETSI-Articulos-Arodriguez-0009
http://e-spacio.uned.es/fez/view/bibliuned:DptoICyF-ETSI-Articulos-Arodriguez-0009
DOI - identifier https://doi.org/10.3390/app10228048
fecha fin de embargo 2020-11-13
ISSN - identifier 2076-3417
Nombre de la revista Applied Sciences
Número de Volumen 10
Número de Issue 22
Publicado en la Revista Applied Sciences (2020) 10-22, 8048
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 enApplied Sciences (2020) 10-22, 8048, está disponible en línea en el sitio web de la editorial: MDPI https://doi.org/10.3390/app10228048
Notas adicionales The registered version of this article, first published in Applied Sciences (2020) 10-22, 8048, is available online at the publisher's website: MDPI https://doi.org/10.3390/app10228048

 
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Creado: Mon, 08 Apr 2024, 16:54:35 CET