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Distribution Characteristics of Sub-Surface Cracks in Fused Quartz Ground with Different Worn Wheels

The crack distribution characteristics in grinding damage have a significant impact on subsequent polishing efficiency and part strength. Grinding tests were carried out on fused quartz using grinding wheels with different wear states. The results showed that the cracks produced by sharp abrasive gr...

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Detalles Bibliográficos
Autores principales: Zhao, Bingyao, Wang, Yonghao, Yan, Ying, Wang, Kai, Zhou, Ping
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8999835/
https://www.ncbi.nlm.nih.gov/pubmed/35407776
http://dx.doi.org/10.3390/ma15072443
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author Zhao, Bingyao
Wang, Yonghao
Yan, Ying
Wang, Kai
Zhou, Ping
author_facet Zhao, Bingyao
Wang, Yonghao
Yan, Ying
Wang, Kai
Zhou, Ping
author_sort Zhao, Bingyao
collection PubMed
description The crack distribution characteristics in grinding damage have a significant impact on subsequent polishing efficiency and part strength. Grinding tests were carried out on fused quartz using grinding wheels with different wear states. The results showed that the cracks produced by sharp abrasive grits were mainly near chevron cracks and had no preferred direction. However, the blunt abrasive grits produced near partial cone cracks had a preferred direction. At a depth of 96.7 μm from the surface, the amount of cracks in the range of 50°~90° with an inclination angle between the crack and the cutting direction could reach 88.9%. The statistical results showed that the depth and total length of cracks produced by sharp grits were larger than those produced by blunt grits (the maximum crack depth difference was about 40 μm). Therefore, it was concluded that sharp abrasive grits were not conducive to damage control. The findings of this research enhance our understanding of the formation mechanism of grinding damage.
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spelling pubmed-89998352022-04-12 Distribution Characteristics of Sub-Surface Cracks in Fused Quartz Ground with Different Worn Wheels Zhao, Bingyao Wang, Yonghao Yan, Ying Wang, Kai Zhou, Ping Materials (Basel) Article The crack distribution characteristics in grinding damage have a significant impact on subsequent polishing efficiency and part strength. Grinding tests were carried out on fused quartz using grinding wheels with different wear states. The results showed that the cracks produced by sharp abrasive grits were mainly near chevron cracks and had no preferred direction. However, the blunt abrasive grits produced near partial cone cracks had a preferred direction. At a depth of 96.7 μm from the surface, the amount of cracks in the range of 50°~90° with an inclination angle between the crack and the cutting direction could reach 88.9%. The statistical results showed that the depth and total length of cracks produced by sharp grits were larger than those produced by blunt grits (the maximum crack depth difference was about 40 μm). Therefore, it was concluded that sharp abrasive grits were not conducive to damage control. The findings of this research enhance our understanding of the formation mechanism of grinding damage. MDPI 2022-03-26 /pmc/articles/PMC8999835/ /pubmed/35407776 http://dx.doi.org/10.3390/ma15072443 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Zhao, Bingyao
Wang, Yonghao
Yan, Ying
Wang, Kai
Zhou, Ping
Distribution Characteristics of Sub-Surface Cracks in Fused Quartz Ground with Different Worn Wheels
title Distribution Characteristics of Sub-Surface Cracks in Fused Quartz Ground with Different Worn Wheels
title_full Distribution Characteristics of Sub-Surface Cracks in Fused Quartz Ground with Different Worn Wheels
title_fullStr Distribution Characteristics of Sub-Surface Cracks in Fused Quartz Ground with Different Worn Wheels
title_full_unstemmed Distribution Characteristics of Sub-Surface Cracks in Fused Quartz Ground with Different Worn Wheels
title_short Distribution Characteristics of Sub-Surface Cracks in Fused Quartz Ground with Different Worn Wheels
title_sort distribution characteristics of sub-surface cracks in fused quartz ground with different worn wheels
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8999835/
https://www.ncbi.nlm.nih.gov/pubmed/35407776
http://dx.doi.org/10.3390/ma15072443
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