Abstract
This research presents the analysis of metrologic and tribologic aspects of machined surfaces obtained after turning with the application of various cooling/lubricating methods. The thoroughly conducted machining tests are: dry machining, minimum quantity cooling lubrication (MQCL); minimum quantity cooling lubrication with EP/AW modifications (MQCL+EP/AW) and minimum quantity lubrication (MQL). The phosphate ester based modification in the MQCL+EP/AW method is employed in order to increase the lubricating properties of the emulsion. The surface topography, responsible for the tribological properties of mating parts, is measured. The smallest values of the surface roughness are obtained after turning under MQCL+EP/AW conditions, while the highest values of parameters responsible for oil retention in mating parts are obtained after machining with the MQL method.
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