To reduce the use of cutting fluids in machining operations is a goal that has been searched in the industry due to environmental problems and human health that the cutting fluids cause. However, cutting fluids still promote longer life of the cutting tool for many machining operations. This is the case of Ti6Al4V titanium milling operation using coated cemented carbide inserts. Therefore, the aim of this work is to study feasible cutting conditions for use of minimal quantity of fluid technique, ie, conditions that make the tool life in MQF technique, closer or higher than those obtained with the cutting without lubrication/cooling and cutting fluid jet without giving up productivity and the average roughness of the parts in the process. To achieve these objectives, several trials at Ti6Al4V end milling were performed by varying the cutting speed and feed rate with MQF application technique using vegetable cutting fluid compared with no lubrication/cooling and cutting with jet fluid to 8% aqueous emulsion. The main conclusion from this study was that the application of the MQF technique in Ti6Al4V end milling process increases tool life, productivity and reduces the average surface roughness, while were maintained the same cutting conditions originally proposed in machining. Finally were made micro structural analysis by SEM/EDS from cutting tools used and observed the main wear mechanisms when varying the lubrication/cooling systems employed. Downloaded by [RMIT University] at 09:21 17 August 2015 2
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