Study of Drilling Process by Cooling Compressed Air in Reinforced Polyether-Ether-Ketone

Domingo, Rosario, Agustina, Beatriz de y Marín, Marta M. . (2020) Study of Drilling Process by Cooling Compressed Air in Reinforced Polyether-Ether-Ketone. Materials

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Título Study of Drilling Process by Cooling Compressed Air in Reinforced Polyether-Ether-Ketone
Autor(es) Domingo, Rosario
Agustina, Beatriz de
Marín, Marta M.
Materia(s) Ingeniería Industrial
Abstract This study is focused on the application of a cooling compressed air system in drilling processes; this environmentally friendly technique allows removing material at very low temperatures, approximately up to −22 °C in the cutting area. The main goals are to find the most improve cutting conditions with less energy consumption, for the drilling of reinforced polyether-ether-ketone with glass fiber at 30% (PEEK-GF30) with cooling compressed air by a Ranque-Hilsch vortex tube, and to find a balance between environmental conditions and adequate process performance. Drilling tests were carried out on plates of PEEK-GF30 to analyze the influence of cutting parameters and environmental temperature (–22, 0 and 22 °C) on variables such as thrust forces, energy and material removed rate by the use of statistical methods; analysis of variance, analysis of means, response surface, and desirability function were employed to identify the optimum region that provides the most improved values of the aforementioned variables. Drill bit diameter was also analyzed to determine the quality of drilled holes. During the drilling processes, force signals were detected by a piezoelectric dynamometer connected to multichannel amplifier and a pyrometer was used to control the temperature. The diameters of the drilled holes were measured by a coordinate measuring machine. Cooling compressed air can be considered an adequate technique to improve the results from an environmental and efficient perspective; in particular, the maximum desirability function was found at a spindle speed of 7000 rpm, a feedrate of 1 mm/rev and a temperature close to −22 °C.
Palabras clave drilling
cooling compressed air
thrust force
energy
material removed rate
PEEK-GF30
multi-response optimization
sustainable manufacturing
Editor(es) MDPI
Fecha 2020-04-22
Formato application/pdf
Identificador bibliuned:DptoICyF-ETSI-Articulos-Mmarin-0003
http://e-spacio.uned.es/fez/view/bibliuned:DptoICyF-ETSI-Articulos-Mmarin-0003
DOI - identifier 10.3390/ma13081965
ISSN - identifier 1996-1944
Nombre de la revista Materials
Número de Volumen 13
Número de Issue 8
Publicado en la Revista Materials
Idioma eng
Versión de la publicación publishedVersion
Tipo de recurso Article
Derechos de acceso y licencia http://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
Tipo de acceso Acceso abierto
Notas adicionales The registered version of this article, first published in Materials, is available online at the publisher's website: MDPI https://doi.org/10.3390/ma13081965
Notas adicionales La versión registrada de este artículo, publicado por primera vez en Materials, está disponible en línea en el sitio web del editor: MDPI https://doi.org/10.3390/ma13081965

 
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Creado: Mon, 05 Feb 2024, 23:54:19 CET