In-SEM micro-machining reveals the origins of the size effect in the cutting energy

Abstract High-precision metal cutting is increasingly relevant in advanced applications. Such precision normally requires a cutting feed in the micron or even sub-micron dimension scale, which raises questions about applicability of concepts developed in industrial scale machining. To address this c...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Bentejui Medina-Clavijo, Gorka Ortiz-de-Zarate, Andres Sela, Iñaki M. Arrieta, Aleksandr Fedorets, Pedro J. Arrazola, Andrey Chuvilin
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/e572d126740248bdb24fa31378df8ded
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:e572d126740248bdb24fa31378df8ded
record_format	dspace
spelling	oai:doaj.org-article:e572d126740248bdb24fa31378df8ded2021-12-02T15:23:38ZIn-SEM micro-machining reveals the origins of the size effect in the cutting energy10.1038/s41598-021-81125-72045-2322https://doaj.org/article/e572d126740248bdb24fa31378df8ded2021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-81125-7https://doaj.org/toc/2045-2322Abstract High-precision metal cutting is increasingly relevant in advanced applications. Such precision normally requires a cutting feed in the micron or even sub-micron dimension scale, which raises questions about applicability of concepts developed in industrial scale machining. To address this challenge, we have developed a device to perform linear cutting with force measurement in the vacuum chamber of an electron microscope, which has been utilised to study the cutting process down to 200 nm of the feed and the tool tip radius. The machining experiments carried out in-operando in SEM have shown that the main classical deformation zones of metal cutting: primary, secondary and tertiary shear zones—were preserved even at sub-micron feeds. In-operando observations and subsequent structural analysis in FIB/SEM revealed a number of microstructural peculiarities, such as: a substantial increase of the cutting force related to the development of the primary shear zone; dependence of the ternary shear zone thickness on the underlaying grain crystal orientation. Measurement of the cutting forces at deep submicron feeds and cutting tool apex radii has been exploited to discriminate different sources for the size effect on the cutting energy (dependence of the energy on the feed and tool radius). It was observed that typical industrial values of feed and tool radius imposes a size effect determined primarily by geometrical factors, while in a sub-micrometre feed range the contribution of the strain hardening in the primary share zone becomes relevant.Bentejui Medina-ClavijoGorka Ortiz-de-ZarateAndres SelaIñaki M. ArrietaAleksandr FedoretsPedro J. ArrazolaAndrey ChuvilinNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-18 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Bentejui Medina-Clavijo Gorka Ortiz-de-Zarate Andres Sela Iñaki M. Arrieta Aleksandr Fedorets Pedro J. Arrazola Andrey Chuvilin In-SEM micro-machining reveals the origins of the size effect in the cutting energy
description	Abstract High-precision metal cutting is increasingly relevant in advanced applications. Such precision normally requires a cutting feed in the micron or even sub-micron dimension scale, which raises questions about applicability of concepts developed in industrial scale machining. To address this challenge, we have developed a device to perform linear cutting with force measurement in the vacuum chamber of an electron microscope, which has been utilised to study the cutting process down to 200 nm of the feed and the tool tip radius. The machining experiments carried out in-operando in SEM have shown that the main classical deformation zones of metal cutting: primary, secondary and tertiary shear zones—were preserved even at sub-micron feeds. In-operando observations and subsequent structural analysis in FIB/SEM revealed a number of microstructural peculiarities, such as: a substantial increase of the cutting force related to the development of the primary shear zone; dependence of the ternary shear zone thickness on the underlaying grain crystal orientation. Measurement of the cutting forces at deep submicron feeds and cutting tool apex radii has been exploited to discriminate different sources for the size effect on the cutting energy (dependence of the energy on the feed and tool radius). It was observed that typical industrial values of feed and tool radius imposes a size effect determined primarily by geometrical factors, while in a sub-micrometre feed range the contribution of the strain hardening in the primary share zone becomes relevant.
format	article
author	Bentejui Medina-Clavijo Gorka Ortiz-de-Zarate Andres Sela Iñaki M. Arrieta Aleksandr Fedorets Pedro J. Arrazola Andrey Chuvilin
author_facet	Bentejui Medina-Clavijo Gorka Ortiz-de-Zarate Andres Sela Iñaki M. Arrieta Aleksandr Fedorets Pedro J. Arrazola Andrey Chuvilin
author_sort	Bentejui Medina-Clavijo
title	In-SEM micro-machining reveals the origins of the size effect in the cutting energy
title_short	In-SEM micro-machining reveals the origins of the size effect in the cutting energy
title_full	In-SEM micro-machining reveals the origins of the size effect in the cutting energy
title_fullStr	In-SEM micro-machining reveals the origins of the size effect in the cutting energy
title_full_unstemmed	In-SEM micro-machining reveals the origins of the size effect in the cutting energy
title_sort	in-sem micro-machining reveals the origins of the size effect in the cutting energy
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/e572d126740248bdb24fa31378df8ded
work_keys_str_mv	AT bentejuimedinaclavijo insemmicromachiningrevealstheoriginsofthesizeeffectinthecuttingenergy AT gorkaortizdezarate insemmicromachiningrevealstheoriginsofthesizeeffectinthecuttingenergy AT andressela insemmicromachiningrevealstheoriginsofthesizeeffectinthecuttingenergy AT inakimarrieta insemmicromachiningrevealstheoriginsofthesizeeffectinthecuttingenergy AT aleksandrfedorets insemmicromachiningrevealstheoriginsofthesizeeffectinthecuttingenergy AT pedrojarrazola insemmicromachiningrevealstheoriginsofthesizeeffectinthecuttingenergy AT andreychuvilin insemmicromachiningrevealstheoriginsofthesizeeffectinthecuttingenergy
_version_	1718387299073392640

In-SEM micro-machining reveals the origins of the size effect in the cutting energy

Ejemplares similares