Preliminary study: Polishing force measurement by viscosity - the return of ketchup polishing

Due to the advantages over conventional polishing strategies, polishing with non-Newtonian fluids are state of the art in precision shape correction of precision optical glass surfaces. The viscosity of such fluids is not constant since it changes as a function of shear rate and time. An example is...

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Auteurs principaux:	Schneckenburger Max, Höfler Sven, Fähnle Oliver, Börret Rainer
Format:	article
Langue:	EN
Publié:	EDP Sciences 2021
Sujets:	Physics QC1-999
Accès en ligne:	https://doaj.org/article/551c89a621ba4458adb50b59fa7d96f8
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id	oai:doaj.org-article:551c89a621ba4458adb50b59fa7d96f8
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spelling	oai:doaj.org-article:551c89a621ba4458adb50b59fa7d96f82021-12-02T17:12:51ZPreliminary study: Polishing force measurement by viscosity - the return of ketchup polishing2100-014X10.1051/epjconf/202125503008https://doaj.org/article/551c89a621ba4458adb50b59fa7d96f82021-01-01T00:00:00Zhttps://www.epj-conferences.org/articles/epjconf/pdf/2021/09/epjconf_eosam2021_03008.pdfhttps://doaj.org/toc/2100-014XDue to the advantages over conventional polishing strategies, polishing with non-Newtonian fluids are state of the art in precision shape correction of precision optical glass surfaces. The viscosity of such fluids is not constant since it changes as a function of shear rate and time. An example is during the shape correction by polishing with pitch or ice, where pitch flows slowly under its own weight and acts like a solid body during short periods of stress as its viscosity increases. The effect can be measured in the polishing gap with a viscometer. If there is a change in force or a process variation of the polishing pressure in the polishing gap, the viscosity also changes. Conversely, the viscosity value could be used to determine the process variation of the polishing force, at least quantitatively. It is to be expected that the distance of the sensor to the polishing gap (effective zone of the polishing force) and the associated change in the viscosity value has a decisive influence on the accuracy of the measurement resolution. First polishing results will be presented and a bowl feed polishing like approach will be presentedSchneckenburger MaxHöfler SvenFähnle OliverBörret RainerEDP SciencesarticlePhysicsQC1-999ENEPJ Web of Conferences, Vol 255, p 03008 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999
spellingShingle	Physics QC1-999 Schneckenburger Max Höfler Sven Fähnle Oliver Börret Rainer Preliminary study: Polishing force measurement by viscosity - the return of ketchup polishing
description	Due to the advantages over conventional polishing strategies, polishing with non-Newtonian fluids are state of the art in precision shape correction of precision optical glass surfaces. The viscosity of such fluids is not constant since it changes as a function of shear rate and time. An example is during the shape correction by polishing with pitch or ice, where pitch flows slowly under its own weight and acts like a solid body during short periods of stress as its viscosity increases. The effect can be measured in the polishing gap with a viscometer. If there is a change in force or a process variation of the polishing pressure in the polishing gap, the viscosity also changes. Conversely, the viscosity value could be used to determine the process variation of the polishing force, at least quantitatively. It is to be expected that the distance of the sensor to the polishing gap (effective zone of the polishing force) and the associated change in the viscosity value has a decisive influence on the accuracy of the measurement resolution. First polishing results will be presented and a bowl feed polishing like approach will be presented
format	article
author	Schneckenburger Max Höfler Sven Fähnle Oliver Börret Rainer
author_facet	Schneckenburger Max Höfler Sven Fähnle Oliver Börret Rainer
author_sort	Schneckenburger Max
title	Preliminary study: Polishing force measurement by viscosity - the return of ketchup polishing
title_short	Preliminary study: Polishing force measurement by viscosity - the return of ketchup polishing
title_full	Preliminary study: Polishing force measurement by viscosity - the return of ketchup polishing
title_fullStr	Preliminary study: Polishing force measurement by viscosity - the return of ketchup polishing
title_full_unstemmed	Preliminary study: Polishing force measurement by viscosity - the return of ketchup polishing
title_sort	preliminary study: polishing force measurement by viscosity - the return of ketchup polishing
publisher	EDP Sciences
publishDate	2021
url	https://doaj.org/article/551c89a621ba4458adb50b59fa7d96f8
work_keys_str_mv	AT schneckenburgermax preliminarystudypolishingforcemeasurementbyviscositythereturnofketchuppolishing AT hoflersven preliminarystudypolishingforcemeasurementbyviscositythereturnofketchuppolishing AT fahnleoliver preliminarystudypolishingforcemeasurementbyviscositythereturnofketchuppolishing AT borretrainer preliminarystudypolishingforcemeasurementbyviscositythereturnofketchuppolishing
_version_	1718381379042934784

Preliminary study: Polishing force measurement by viscosity - the return of ketchup polishing

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