Investigating machining characteristics and degradation rate of biodegradable ZM21 magnesium alloy in end milling process

Surface properties play a significant role in the biocompatibility and biodegradation of Mg-alloy implants which primarily depends on the manufacturing route followed. In the present work, the milling process has been optimized on ZM21 Mg-alloy to obtain the trade-off between the material removal ra...

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Autores principales:	Rajender Kumar, Puneet Katyal, Kamal Kumar, Neeraj Sharma
Formato:	article
Lenguaje:	EN
Publicado:	KeAi Communications Co., Ltd. 2022
Materias:	Biodegradable Mg alloy End milling Surface roughness Degradation rate Chip morphology Grey relational analysis Technology T
Acceso en línea:	https://doaj.org/article/fe1f8234d7994e7b87a2e763185e437e
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spelling	oai:doaj.org-article:fe1f8234d7994e7b87a2e763185e437e2021-12-04T04:35:30ZInvestigating machining characteristics and degradation rate of biodegradable ZM21 magnesium alloy in end milling process2588-840410.1016/j.ijlmm.2021.11.002https://doaj.org/article/fe1f8234d7994e7b87a2e763185e437e2022-03-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2588840421000512https://doaj.org/toc/2588-8404Surface properties play a significant role in the biocompatibility and biodegradation of Mg-alloy implants which primarily depends on the manufacturing route followed. In the present work, the milling process has been optimized on ZM21 Mg-alloy to obtain the trade-off between the material removal rate (MRR), surface roughness (SR), and degradation rate (DR). Milling parameters vary the amount of force and pressure developed between the tool and work interface, thus, affecting the MRR and SR. The weight loss of machined samples was measured after seven days of immersion in simulated body fluid (SBF) to calculate the DR. L16 orthogonal array was used to study the effect of milling parameters such as tool rotation speed (TRS), feed rate (FR), and depth of cut (DoC). The result showed that the variation in the values of milling parameters significantly influences the surface integrity of Mg-alloy, thus affecting the DR. Chip morphology and surface cracks with scanning electron microscopy (SEM) were evaluated to correlate the influence of milling parameters on the machining performance of ZM21 Mg-alloy. The machined surface of Mg-alloy must be of very low SR and cracks-free to avoid fast corrosion. Therefore, grey relational analysis (GRA) has been employed for multi-optimization to get the best trade-off for higher MRR and lower SR and DR. The optimized setting suggested by GRA for milling of ZM21 Mg alloy is TRS: 2700 rpm, FR: 25 mm/min, and DoC: 1.25 mm.Rajender KumarPuneet KatyalKamal KumarNeeraj SharmaKeAi Communications Co., Ltd.articleBiodegradable Mg alloyEnd millingSurface roughnessDegradation rateChip morphologyGrey relational analysisTechnologyTENInternational Journal of Lightweight Materials and Manufacture, Vol 5, Iss 1, Pp 102-112 (2022)
institution	DOAJ
collection	DOAJ
language	EN
topic	Biodegradable Mg alloy End milling Surface roughness Degradation rate Chip morphology Grey relational analysis Technology T
spellingShingle	Biodegradable Mg alloy End milling Surface roughness Degradation rate Chip morphology Grey relational analysis Technology T Rajender Kumar Puneet Katyal Kamal Kumar Neeraj Sharma Investigating machining characteristics and degradation rate of biodegradable ZM21 magnesium alloy in end milling process
description	Surface properties play a significant role in the biocompatibility and biodegradation of Mg-alloy implants which primarily depends on the manufacturing route followed. In the present work, the milling process has been optimized on ZM21 Mg-alloy to obtain the trade-off between the material removal rate (MRR), surface roughness (SR), and degradation rate (DR). Milling parameters vary the amount of force and pressure developed between the tool and work interface, thus, affecting the MRR and SR. The weight loss of machined samples was measured after seven days of immersion in simulated body fluid (SBF) to calculate the DR. L16 orthogonal array was used to study the effect of milling parameters such as tool rotation speed (TRS), feed rate (FR), and depth of cut (DoC). The result showed that the variation in the values of milling parameters significantly influences the surface integrity of Mg-alloy, thus affecting the DR. Chip morphology and surface cracks with scanning electron microscopy (SEM) were evaluated to correlate the influence of milling parameters on the machining performance of ZM21 Mg-alloy. The machined surface of Mg-alloy must be of very low SR and cracks-free to avoid fast corrosion. Therefore, grey relational analysis (GRA) has been employed for multi-optimization to get the best trade-off for higher MRR and lower SR and DR. The optimized setting suggested by GRA for milling of ZM21 Mg alloy is TRS: 2700 rpm, FR: 25 mm/min, and DoC: 1.25 mm.
format	article
author	Rajender Kumar Puneet Katyal Kamal Kumar Neeraj Sharma
author_facet	Rajender Kumar Puneet Katyal Kamal Kumar Neeraj Sharma
author_sort	Rajender Kumar
title	Investigating machining characteristics and degradation rate of biodegradable ZM21 magnesium alloy in end milling process
title_short	Investigating machining characteristics and degradation rate of biodegradable ZM21 magnesium alloy in end milling process
title_full	Investigating machining characteristics and degradation rate of biodegradable ZM21 magnesium alloy in end milling process
title_fullStr	Investigating machining characteristics and degradation rate of biodegradable ZM21 magnesium alloy in end milling process
title_full_unstemmed	Investigating machining characteristics and degradation rate of biodegradable ZM21 magnesium alloy in end milling process
title_sort	investigating machining characteristics and degradation rate of biodegradable zm21 magnesium alloy in end milling process
publisher	KeAi Communications Co., Ltd.
publishDate	2022
url	https://doaj.org/article/fe1f8234d7994e7b87a2e763185e437e
work_keys_str_mv	AT rajenderkumar investigatingmachiningcharacteristicsanddegradationrateofbiodegradablezm21magnesiumalloyinendmillingprocess AT puneetkatyal investigatingmachiningcharacteristicsanddegradationrateofbiodegradablezm21magnesiumalloyinendmillingprocess AT kamalkumar investigatingmachiningcharacteristicsanddegradationrateofbiodegradablezm21magnesiumalloyinendmillingprocess AT neerajsharma investigatingmachiningcharacteristicsanddegradationrateofbiodegradablezm21magnesiumalloyinendmillingprocess
_version_	1718372949394718720

Investigating machining characteristics and degradation rate of biodegradable ZM21 magnesium alloy in end milling process

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