Electrohydrodynamic Atomization for Minimum Quantity Lubrication (EHDA-MQL) in End Milling Ti6Al4V Titanium Alloy

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Abstract

Titanium alloy Ti6Al4V is a difficult-to-machine material which is extensively used in the aerospace and medical industries. Machining titanium is associated with a short tool life and low productivity. In this paper, a new cooling-lubrication system based on electrohydrodynamic atomization was designed, manufactured and tested and the relevant theory was developed. The major novelty of the system lies within the use of electrohydrodynamic atomization (EHDA) and a three-electrode setup for generating lubricant droplets. The system was tested and compared with that of flood, minimum quantity lubrication (MQL) and compressed air machining. The proposed system can extend the tool life by 6 and 22 times when compared with MQL and flood cooling, respectively. This is equivalent to more than 170 min tool life at 120 m/min cutting speed allowing for significant productivity gains in machining Ti6Al4V.
Original languageEnglish
Article number70
JournalJournal of Manufacturing and Materials Processing
Volume4
Issue number3
DOIs
Publication statusPublished - 13 Jul 2020

Projects

Machining of Controlled Expansion Alloys

Shokrani Chaharsooghi, A. & De Bartolomeis, A.

Innovate UK

1/08/1831/07/19

Project: Central government, health and local authorities

START - Subtractive Technologies for Additively Realised Test-parts

Shokrani Chaharsooghi, A., Dhokia, V. & Newman, S.

Innovate UK

1/06/1731/05/18

Project: Central government, health and local authorities

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