Cooling capability of liquid nitrogen and carbon dioxide in cryogenic milling
Artikel i vetenskaplig tidskrift, 2019

This paper discusses an investigation into the capability of liquid nitrogen (LN 2 ) and liquid carbon dioxide (LCO 2 ) as a coolant in machining. A comparative analysis of the heat-transfer rate was made utilizing cooling of a controlled heat source with an integrated temperature sensor. The analysis was coupled with experimental in-process temperature measurements in cryogenic milling of titanium alloy Ti-6Al-4V (ß). The results indicate that cooling capability differs between these two cryogenic media, in both the observed cooling rate as well as in the achieved steady-state temperature.

Temperature

Milling

Cryogenic machining

Författare

Franci Pusavec

Univerza V Ljubljani

Damir Grguraš

Univerza V Ljubljani

Matthias Koch

RWTH Aachen University

Peter Krajnik

Chalmers, Industri- och materialvetenskap, Material och tillverkning

CIRP Annals - Manufacturing Technology

0007-8506 (ISSN)

Vol. 68 1 73-76

Ämneskategorier

Energiteknik

Övrig annan teknik

Metallurgi och metalliska material

DOI

10.1016/j.cirp.2019.03.016

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Senast uppdaterat

2019-07-26