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Economic selection of cutting conditions is an important task in the field of machining. The main problem faced in optimization of cutting conditions is that once selected the optimum cutting conditions do not remain optimum throughout the complete machining operation. This is due to the dynamic variations in the process parameters upon which the decision of optimization depends. So, there is a need to update the optimum cutting conditions continuously throughout the entire machining operation.To achieve this task the tool flank wear is measured by conducting experiments on lathe machine. The...

The present study investigates the steady state creep in a rotating thick-walled composite cylinder, with constant angular speed and made up of aluminum matrix and reinforced with silicon carbide particles (SiC). The distribution of SiC is assumed to be either uniform or decreasing linearly from the inner to the outer radius of the cylinder. The thermal gradient in the rotating functionally gradient cylinder is estimated by performing Finite Element Analysis with ANSYS software. Further, the creep behavior of the cylinder has been described by threshold stress based creep law and the material...

Material is the basic element of the entire natural and manmade structures. With the technological leaps in recent times, focus has been on development of composite materials. These materials have drawn considerable attention of engineers due to their application at high thermo-mechanical loads. With regard to the prediction of the life of high temperature structural components like rotating cylinders and the evaluation of their deterioration with time, it is essential to have a full knowledge of creep characteristics of these materials. Therefore, the steady state creep stresses and creep...