Experimental investigation of cutting temperature in turning sintered powder materials

In modern engineering powder antifriction materials are widely used in friction units. The main feature of sintered powder materials is the presence of the porous structure, which provides self-lubrication when using the friction units. The thermal phenomena are important when machining of the sintered materials. They determine the temperature in the cutting zone, which influences the nature of the microstructure of the surface layer. In this paper, the technique of experimental studies of cutting temperature in the machining of porous sintered materials is described. Based on these results, a mathematical model of effect cutting conditions and the porosity of the material on the cutting temperature is represented.