Cooling capability of liquid nitrogen and carbon dioxide in cryogenic milling
Journal article, 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.



Cryogenic machining


Franci Pusavec

University of Ljubljana

Damir Grguraš

University of Ljubljana

Matthias Koch

RWTH Aachen University

Peter Krajnik

Chalmers, Industrial and Materials Science, Materials and manufacture

CIRP Annals - Manufacturing Technology

0007-8506 (ISSN)

Vol. 68 1 73-76

Subject Categories

Energy Engineering

Other Engineering and Technologies not elsewhere specified

Metallurgy and Metallic Materials



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