Franci Pušavec (Author), Luka Sterle (Author), Mitjan Kalin (Author), Dinesh Mallipeddi (Author), Peter Krajnik (Author)

Abstract

An investigation is made into the lubrication capabilities of solid-lubricated liquid carbon dioxide (LCO2)incomparison toflood lubrication, straight LCO2and oil-lubricated LCO2(MQL). The coefficient of friction isdetermined via tribological experiments, similar to machining, using an open tribometer which features anuncoated carbide insert sliding against a workpiece. Tribological experiments reveal superior performance ofsolid-lubricated LCO2. The milling experiments as well indicate that solid-lubricated LCO2significantlyreduces wear. The machined-surface topography is examined using high-magnification SEM, which showsno presence of adhered solid particles on the workpiece surface, providing a completely dry machining pro-cess.

Keywords

machining;lubrication;friction;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UL FS - Faculty of Mechanical Engineering
UDC: 539.92:621.89(045)
COBISS: 15739395 Link will open in a new window
ISSN: 0007-8506
Views: 370
Downloads: 135
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Other data

Secondary language: Slovenian
Secondary keywords: odrezavanje;mazanje;trenje;
Type (COBISS): Article
Pages: str. 69-72
Volume: ǂVol. ǂ69
Issue: ǂiss. ǂ1
Chronology: 2020
DOI: 10.1016/j.cirp.2020.04.033
ID: 12806417