High Speed Finish Turning of Inconel 718 Using PCBN Tools under Dry Conditions

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dc.contributor.author Cantero Guisández, José Luis
dc.contributor.author Díaz Álvarez, José
dc.contributor.author Infante García, Diego
dc.contributor.author Rodríguez Millán, Marcos
dc.contributor.author Criado del Álamo, Víctor
dc.date.accessioned 2019-02-14T09:38:41Z
dc.date.available 2019-02-14T09:38:41Z
dc.date.issued 2018-03-17
dc.identifier.bibliographicCitation Cantero, J.L., Díaz-Álvarez, J., Infante-García, D., Rodríguez, M., Criado, V. (2018). High Speed Finish Turning of Inconel 718 Using PCBN Tools under Dry Conditions. Metals, 8 (3), 192.
dc.identifier.issn 2075-4701
dc.identifier.uri http://hdl.handle.net/10016/28065
dc.description.abstract Inconel 718 is a superalloy, considered one of the least machinable materials. Tools must withstand a high level of temperatures and pressures in a very localized area, the abrasiveness of the hard carbides contained in the Inconel 718 microstructure and the adhesion tendency during its machining. Mechanical properties along with the low thermal conductivity become an important issue for the tool wear. The finishing operations for Inconel 718 are usually performed after solution heat treatment and age hardening of the material to give the superalloy a higher level of hardness. Carbide tools, cutting fluid (at normal or high pressures) and low cutting speed are the main recommendations for finish turning of Inconel 718. However, dry machining is preferable to the use of cutting fluids, because of its lower environmental impact and cost. Previous research has concluded that the elimination of cutting fluid in these processes is feasible when using hard carbide tools. Recent development of new PCBN (Polycrystalline Cubic Boron Nitride) grades for cutting tools with higher tenacity has allowed the application of these tool grades in the finishing operations of Inconel 718. This work studies the performance of commercial PCBN tools from four different tool manufacturers as well as an additional grade with equivalent performance during finish turning of Inconel 718 under dry conditions. Wear tests were carried out with different cutting conditions, determining the evolution of machining forces, surface roughness and tool wear. It is concluded that it is not industrially viable the high-speed finishing of Inconel 718 in a dry environment.
dc.description.sponsorship This work was supported by the Spanish Ministry of Economy and Competitiveness and FEDER program under grant DPI2014-56137-C2-2-R.
dc.format.extent 19
dc.format.mimetype application/pdf
dc.language.iso eng
dc.rights © 2018 by the authors; licensee MDPI, Basel, Switzerland.
dc.rights Atribución-NoComercial-SinDerivadas 3.0 España
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subject.other Dry turning
dc.subject.other Inconel 718
dc.subject.other PCBN
dc.subject.other Wear
dc.title High Speed Finish Turning of Inconel 718 Using PCBN Tools under Dry Conditions
dc.type article
dc.subject.eciencia Ingeniería Mecánica
dc.identifier.doi https://www.doi.org/10.3390/met8030192
dc.rights.accessRights openAccess
dc.relation.projectID Gobierno de España. DPI2014-56137-C2-2-R
dc.type.version publishedVersion
dc.identifier.publicationissue 3
dc.identifier.publicationtitle Metals
dc.identifier.publicationvolume 8
dc.identifier.uxxi AR/0000021585
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