Spray lubrication in turning processes, effects on productivity and quality

Abstract

Productivity and quality are parameters of constant research

and development in the machining industry. However, the

concern for the environment and sustainability have forced a

decrease in the limit of the use of cutting fluids. Given this,

it is important to take into account solutions focused on

satisfying these requirements. In this work, using MQL spray

lubrication with the inclusion of TiO2 titanium nanoparticles

in the turning process of AISI 304 steel, it has been possible to

show improvements in the surface quality and decrease in the

wear of the cutting tools. It was determined that the inclusion

of 0.5% TiO2 in vegetable oil achieved an improvement in the

surface roughness of 50%. In addition, under the conditions of

the tests, the flank wear of the cutting tools was reduced by

25%.