OPTIMIZATION IN SELECTION OF TOOL FOR TURNING OF MATRIX COMPOSITE USING COATED AND UNCOATED CUTTING TOOLS.

Industries always work aiming the profit, it ranges from materials, equipment’s, and in deep cutting tools, work material etc, and such of its kind satisfying the requirement is Metal matrix composite. Metal Matrix composite are finding increased applications in many areas and are now gaining their usage in aerospace and automotive industries, because of their low cost. But machining of Metal matrix composite materials is difficult to carry out due to the anisotropic and non-homogeneous structure of composites and to the high abrasiveness of their reinforcing constituents. This typically results in damage being introduced into the work piece and also in very rapid wear development in the cutting tool but even then these industries are forced to move with MMC. Cutting tool is considered to be the main factor while machining MMC, a proper cutting tool which does not break during MMC operation will definitely yield good results and also the vast usage in all areas. The wear rate of the cutting tool decreased rapidly with increasing the cutting parameters such as cutting speed, feed and depth of cut, however cutting speed is shown to be more effective. Sudden breakage of tool inserts occurred at high cutting speeds. Coated carbide tools have significantly improved the tool life. Coated tools show better results compared to uncoated tools. Therefore this paper brings out an important aspect in such as optimization and design Break even analysis of tool during turning operation of Metal matrix composites by using coated and uncoated tools, which is analysed using a Minitab software while comparing the graph the material removal rate in MMC depends upon the depth of cut, so as the tool wear depends upon the depth of cut perfectly. Also coated tools show less tool wear than the uncoated tools also will yield in good surface finish.