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A novel indirect cryogenic cooling system for improving surface finish and reducing cutting forces when turning ASTM F-1537 cobalt-chromium alloys.pdf (1.792Mb)
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Title
A novel indirect cryogenic cooling system for improving surface finish and reducing cutting forces when turning ASTM F-1537 cobalt-chromium alloys
Author
rodriguez, IñigoMondragon Unibertsitatea
ARRAZOLA, PEDRO JOSE ccMondragon Unibertsitatea
Author (from another institution)
Tangpronprasert, P.
Virulsri, C.
Keeratihattayakorn, S.
Research Group
Mecanizado de alto rendimiento
Published Date
2020
Publisher
Springer
Keywords
Indirect cryogenic cooling
Liquid nitrogen
Cobalt-based alloys
Cryogenic turning
Abstract
This paper presents a novel indirect cryogenic cooling system, employing liquid nitrogen (LN2) as a coolant for machining the difficult-to-cut ASTM F-1537 cobalt-chromium (CoCr) alloy. The prototype d ... [+]
This paper presents a novel indirect cryogenic cooling system, employing liquid nitrogen (LN2) as a coolant for machining the difficult-to-cut ASTM F-1537 cobalt-chromium (CoCr) alloy. The prototype differs from the already existing indirect cooling systems by using a modified cutting insert that allows a larger volume of cryogenic fluid to flow under the cutting zone. For designing the prototype analytical and finite element, thermal calculations were performed; this enabled to optimize the heat evacuation of the tool from the rake face without altering the stress distribution on the insert when cutting material. Turning experiments on ASTM F-1537 CoCr alloys were performed under different cutting conditions and employing indirect cryogenic cooling and dry machining, to test the performance of the developed system. The results showed that the new system improved surface roughness by 12%, and cutting forces were also reduced by 12% when compared with the existing indirect cryogenic cooling technique. [-]
URI
https://hdl.handle.net/20.500.11984/5953
Publisher’s version
https://doi.org/10.1007/s00170-020-06193-x
ISSN
0268-3768
Published at
International Journal of Advanced Manufacturing Technology  Vol. 111. N. 7-8. Pp. 1971-1989, 2020
Document type
Article
Version
Postprint – Accepted Manuscript
Rights
© 2020 Springer
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  • Articles - Engineering [478]

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