چكيده به لاتين
In recent years, the use of High pressure Jet Coolant has been one of the effective solutions to improve the machining process. Although the application of High pressure Jet Coolant during machining to several types of hard machined materials has yielded great results, most studies of High pressure Jet Coolant are still limited to experimental tests that fail to provide a basic understanding of the process. In addition, there is still insufficient information on the details of High pressure Jet Coolant in machining. To fill this gap and in order to achieve tangible results, targeting has been developed based on the study of the mechanism of action of High pressure Jet Coolant based on a combination of finite elementanalysis and experimental experiments. Thus, the simulation of the turning process in several separate steps has been used. Initially, the simulation was performed without the use of coolant fluid, ie Dry Turning Mode. At this stage of the process, simulation is performed for three different cutting Speed and at one speed for two different cutting Depth. In the second step, the process is simulated using wet turning mode. The amount of heat transfer coefficient in this case is extracted from the results of finite volume simulation using CFX software. In the third step, the effect of High pressure Jet Coolant is also considered. In order to validate the finite element simulation, experimental machining experiments have been used. At each stage, different values of material removal rate are also considered. The results indicate that the addition of High pressure Jet Coolant has a significant effect on improving the machining process. With a cutting speed of 165 m / min and a cutting depth of 2.5 mm, the addition of a high pressure Jet Coolant with a pressure of 80 bar to the machining process reduces the maximum tool temperature by 40%. This will increase the life of the tool, improve the quality of the workpiece surface and reduce the process time.
