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An experimental investigation on effect of minimum quantity cooling lubrication (MQCL) in machining titanium alloy (Ti6Al4V)
KTH, School of Industrial Engineering and Management (ITM), Production Engineering.
KTH, School of Industrial Engineering and Management (ITM), Production Engineering.ORCID iD: 0000-0002-5960-2159
KTH, School of Industrial Engineering and Management (ITM), Production Engineering.
2016 (English)In: The International Journal of Advanced Manufacturing Technology, ISSN 0268-3768, E-ISSN 1433-3015, Vol. 87, no 5-8, 1371-1386 p.Article in journal (Refereed) Published
Abstract [en]

During the machining operation, elevated temperatures are achieved at the cutting interface due to the presence of high plastic deformation and friction in between the tool and chip contacting area. Efficient heat dissipation from the cutting interface is required to achieve better machining performance. Elevated temperature in the cutting area results in lower tool life as it facilitates different types of wear mechanisms. Metal working fluids (MWFs) are employed to reduce heat and friction in the cutting zone, simultaneously to help in the flushing of waste particles. The MWFs are based on either water or petroleum oil and include several additives which make them non-biodegradable and toxic in nature. The minimum quantity lubrication (MQL) method offers a feasible substitute to the MWF-based conventional flood cooling method. In this study, a vegetable oil-based MQL system was mixed with sub-zero temperature air to design a new minimum quantity cooling lubrication (MQCL) system. The study investigates the machinability of Ti6Al4V using an MQCL system under various oil flow rates and compared its machining performance with both dry cutting and conventional flood cooling. For further evaluation, the study investigated surface roughness, flank wear, and associated wear mechanisms. It was found that in the MQCL system (60–70 ml/h), oil supply rates provided reliable machining performance at higher feed levels.

Place, publisher, year, edition, pages
Springer London, 2016. Vol. 87, no 5-8, 1371-1386 p.
Keyword [en]
Biodegradable, Machinability, MQCL, MQL, Titanium, Tools, Turning, Wear, Air lubrication, Cooling, Cutting fluids, Floods, Fluids, Friction, Lubrication, Metal cutting, Metal working, Petroleum additives, Surface roughness, Thermal processing (foods), Titanium alloys, Tribology, Wear of materials, Experimental investigations, Machining operations, Machining performance, Minimum quantity cooling, Minimum quantity lubrication, Sub-zero temperatures, Cutting tools
National Category
URN: urn:nbn:se:kth:diva-197092DOI: 10.1007/s00170-016-8969-6ISI: 000387307600015ScopusID: 2-s2.0-84973659680OAI: diva2:1056040

QC 20161213

Available from: 2016-12-13 Created: 2016-11-30 Last updated: 2017-01-10Bibliographically approved

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