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

Journal of Manufacturing and Materials Processing

Alborz Shokrani¹  Andrea De Bartolomeis¹ 

[1] Department of Mechanical Engineering, University of Bath, Bath BA2 7AY, UK;

关键词: machining;    minimum quantity lubrication;    titanium;    electrohydrodynamic atomization;    end milling;   

DOI  :  10.3390/jmmp4030070

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown