A novel cryogenic machining concept based on a lubricated liquid carbon dioxide

Grguraš, Damir (author), Sterle, Luka (author), Krajnik, Peter (author), Pušavec, Franci (author)

A novel single-channel supply of pre-mixed (a) liquid carbon dioxide (LCO2) and (b) oil - delivered via minimum quantity lubrication (MQL) - represents a significant advancement in cryogenic-machining technology. In this proof-of-concept study, an attempt is made to advance the understanding of the oil solubility in LCO2 and to analyze the oil-droplets and their impact on machining performance. The results indicate that the physical and chemical properties of oil distinctively affect its solubility in LCO2. The achieved solubility further influences the achievable oil-droplet size and distribution and tool life.

• Language: English
• Keywords: cryogenic machining, carbon dioxide, single-channel MQL, solubility, cooling, lubrication
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FS - Faculty of Mechanical Engineering
• Publication status: Published
• Publication version: Version of Record
• Year: 2019
• Number of pages: 6 str.
• Numbering: Vol. 145, art. 103456
• PID: 20.500.12556/RUL-126432
• UDC: 621.9:546.264-31(045)
• ISSN on article: 0890-6955
• DOI: 10.1016/j.ijmachtools.2019.103456
• COBISS.SI-ID: 16781851
• Publication date in RUL: 21.04.2021

Record is a part of a journal

• Title: International journal of machine tools & manufacture
• Shortened title: Int. j. mach. tools manuf.
• Publisher: Pergamon
• ISSN: 0890-6955
• COBISS.SI-ID: 8907013

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
• Licensing start date: 05.09.2019

Secondary language

• Language: Slovenian
• Keywords: kriogeno odrezavanje, ogljikov dioksid, enokanalni dovod MQL, topnost, hlajenje, mazanje

Projects

• Funder: ARRS - Slovenian Research Agency
• Project number: L2-8184
• Name: Razvoj in implementacija kriogenega odrezavanja v serijsko proizvodno za povečanje produktivnosti procesov vrtanja in frezanja

• Funder: ARRS - Slovenian Research Agency
• Project number: P2-0266
• Name: Napredne izdelovalne tehnologije za visoko kakovostno in trajnostno proizvodnjo