Abstract:

In the industry, the need for secure and stable work under the high speed and heavy load conditions required in various machinery systems such as turbo machines, generators, compressors, pumps, steam and gas turbines is increasing from day to day. The mills used in these systems indicate that the working frequencies in the enterprise are equal to their frequencies or that they are very close to the working system. Thus, the mechanical energy of the millin is increasing and if no measures are taken to balance this increasing energy, the millin may be broken. For this reason, the dynamic behavior of the machine systems is of great importance. The vibration characteristics are the most important and detailed information in determining the dynamic behavior of machines. The vibration characteristics represent the performance of the machine in operating conditions and the most important factors in the detection of mechanical problems. Relatively reducing the vibrations in the system is possible with the use of appropriate materials in machine parts. Heat processing is applied to improve the mechanical characteristics of the materials. In this study, the impact of heat processing on the dynamic behavior of the AISI 4140, which is widely used in the machinery and automotive industry, was studied. For this purpose, the dynamic behavior of the non-heat processed and non-heat processed mills has been experimentally compared.