This study was carried out on medium carbon steel subjected to various form of heat treatment\noperations by assessing the temperature distribution during the machining process. The model of\noblique band heat source, moving in the direction of cutting in an infinite medium with an appropriate\nimage heat source was used in this investigation. The model analysis was carried out separately on the\nchip, the tool and the work material to numerically determine the temperature distribution during\nmachining process using finite element method with nodal grids. Johnson-Cook model was used to\ndetermine the work materials flow stress upon which the material properties were determined.\nStress/strain tests were conducted on the specimens to determine the materialsâ�� constant parameters\nwhich were used as the input parameters to the modeling equation written in Visual Basic 6.0. The\noptimum shear angle of 20�° was used for the machining process and the frictional characteristics were\nalso determined. The temperature along the shear plane AB was determined with reference to\ncoordinate axis within the tool, workpiece and the chip using the model. The results which compare\nfavorably with other results from literatures, provide basis for the design of machining variables for\noptimum and quality machined products which can also be applied in the computer programming of NC\nmachine for precision machining.
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