ANALYSIS OF MACHINING FORCES IN FRONTAL MILLING OF ABNT 1045 STEEL WITH MQF APPLICATION OF BABASSU OIL

Several aspects characterize the machinability of a material, among them the required cutting power, surface finish and tool life, being these parameters improved using cutting fluids. The objective of this work is to evaluate the effect of the application of refined babassu oil (Orbignya oleifera), when used as cutting fluid with minimum amount of fluid (MQF) technique, in the machining forces of ABNT 1045 during frontal milling process. The methodology consisted of the application of babassu oil, comparing its performance with the commercial cutting fluid LB 2000, both in the MQF technique, and with the dry condition. It was carried out an Experimental Planning - DOE factorial 25, having as variables the cutting speed, feed speed, cutting depth and cutting fluid at various MQF flow rates, being analyzed the cutting forces, feed force and passive force. Babassu oil, besides ecologically correct, allowed values of machining forces lower than the dry condition and in line with the LB 2000 oil, being more efficient at 50 ml/h and 200 ml/h fluid flow rates.