PREDICTION OF TEMPERATURE INDUCED ON SAE 5160 STEEL SHAFT DURING A FACE MILLING OPERATION

Abstract

Abstract: Several researchers studied the temperature produced during machining of a workpiece by using different machining parameters and workpiece. In this study, SAE 5160 steel shafts were face milled under dry conditions and the temperatures induced were measured using infrared thermometer. Machining parameters considered in this study were cutting speed, depth of cut and feed rate and the experimental design method employed was 23 factorial. Each shaft was milled at a length of 55 mm. The induced temperatures were analysed using Minitab 19.0 Statistical software. Depth of cut was found to be the most significant parameter followed by cutting speed and feed rate. A mathematical model was generated and was found to be valid in predicting the induced temperature since its percentage error (+0.2) fell within the standard percentage error ( 5.0). The optimal machining parameters were found to be at lower depth of cut (1 mm), lower cutting speed (180 rpm) and higher feed rate (1.5 mm/rev).