Tribology of solid-lubricated liquid carbon dioxide assisted machining

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

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.

• Language: English
• Keywords: machining, lubrication, friction
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FS - Faculty of Mechanical Engineering
• Publication status: Published
• Publication version: Version of Record
• Year: 2020
• Number of pages: Str. 69-72
• Numbering: Vol. 69, iss. 1
• PID: 20.500.12556/RUL-126437
• UDC: 539.92:621.89(045)
• ISSN on article: 0007-8506
• DOI: 10.1016/j.cirp.2020.04.033
• COBISS.SI-ID: 15739395
• Publication date in RUL: 22.04.2021

Record is a part of a journal

• Title: CIRP annals
• Shortened title: CIRP ann.
• Publisher: Technische Rundschau, Hallwag Verlag, Colibri, Elsevier
• ISSN: 0007-8506
• COBISS.SI-ID: 170267

Licences

• License: CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
• Link: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Description: The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
• Licensing start date: 17.05.2020

Secondary language

• Language: Slovenian
• Keywords: odrezavanje, mazanje, trenje