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An Experimental and Finite Element Approach for a Better Understanding of Ti-6Al-4V Behavior When Machining under Cryogenic Environment
Dalarna University, School of Information and Engineering, Materials Technology.
2021 (English)In: Materials, ISSN 1996-1944, E-ISSN 1996-1944, Vol. 14, no 11, article id 2796Article in journal (Refereed) Published
Abstract [en]

Due to increasing demand in manufacturing industries, process optimization has become a major area of focus for researchers. This research optimizes the cryogenic machining of aerospace titanium alloy Ti-6Al-4V for industrial applications by studying the effect of varying the nozzle position using two parameters: the nozzle's separation distance from the tool-chip interface and its inclination angle with respect to the tool rake face. A finite element model (FEM) and computational fluid dynamics (CFD) model are used to simulate the cryogenic impingement of cryogenic carbon dioxide on the tool-workpiece geometry. Experiments are conducted to evaluate cutting forces, tool wear, and surface roughness of the workpiece, and the results are related to the CFD and FEM analyses. The nozzle location is shown to have a significant impact on the cutting temperatures and forces, reducing them by up to 45% and 46%, respectively, while the dominant parameter affecting the results is shown to be the separation distance. Cryogenic machining is shown to decrease adhesion-diffusion wear as well as macroscopic brittle chipping of the cutting insert compared to dry turning, while the workpiece surface roughness is found to decrease by 44% in the case of cryogenic machining.

Place, publisher, year, edition, pages
2021. Vol. 14, no 11, article id 2796
Keywords [en]
CFD, FEM, cryogenic machining, cutting forces, titanium, tool wear
National Category
Manufacturing, Surface and Joining Technology
Identifiers
URN: urn:nbn:se:du-37335DOI: 10.3390/ma14112796ISI: 000660268600001PubMedID: 34073958Scopus ID: 2-s2.0-85107379879OAI: oai:DiVA.org:du-37335DiVA, id: diva2:1562442
Available from: 2021-06-08 Created: 2021-06-08 Last updated: 2023-04-14Bibliographically approved

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Olsson, Mikael

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CiteExportLink to record
Permanent link

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Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • chicago-author-date
  • chicago-note-bibliography
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
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  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
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  • asciidoc
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