Tribology of solid-lubricated liquid carbon dioxide assisted machining
Journal article, 2020

An investigation is made into the lubrication capabilities of solid-lubricated liquid carbon dioxide (LCO2) in comparison to flood lubrication, straight LCO2 and oil-lubricated LCO2 (MQL). The coefficient of friction is determined via tribological experiments, similar to machining, using an open tribometer which features an uncoated carbide insert sliding against a workpiece. Tribological experiments reveal superior performance of solid-lubricated LCO2. The milling experiments as well indicate that solid-lubricated LCO2 significantly reduces wear. The machined-surface topography is examined using high-magnification SEM, which shows no presence of adhered solid particles on the workpiece surface, providing a completely dry machining process.





Franci Pusavec

University of Ljubljana

Luka Sterle

University of Ljubljana

Mitjan Kalin

University of Ljubljana

Dinesh Mallipeddi

Chalmers, Industrial and Materials Science, Materials and manufacture

Peter Krajnik

Chalmers, Industrial and Materials Science, Materials and manufacture

CIRP Annals - Manufacturing Technology

0007-8506 (ISSN)

Vol. 69 1 69-72

Sustainable manufacturing through processing with cryogen technology (SUSTAIN-CRYO)

VINNOVA, 2017-11-01 -- 2020-11-30.

Driving Forces

Sustainable development

Subject Categories


Manufacturing, Surface and Joining Technology

Chemical Process Engineering

Areas of Advance




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