The widespread adoption of ultrasonic processing methods was hindered by the lack of reliable ultrasonic heads. Currently, in connection with the widespread production of piezoceramic transducers of various shapes and sizes, it has become possible to abandon bulky magnetostrictive transducers requiring individual cooling. The creation of light piezoceramic heads and their implementation in production is associated with targeted comprehensive studies to determine the magnitude and direction of ultrasonic vibrations, the influence of technological factors on the surface roughness and accuracy of the obtained holes. This processing method is especially important in aircraft engine building, where the issue of obtaining quality holes is particularly acute. Difficulties in the processing of holes by reaming are associated with the low machinability of the used steels and alloys in aircraft engine construction. The cutting edges wear out at the intersection of the intake cone and the calibrating part the more intensively, the higher the processing conditions. The process of holes reaming is one of the most difficult and critical stages of machining, on which the quality and the final result of the machined parts depend. This paper describes the experiment and gives experimental data on the influence of the magnitude and direction of ultrasonic vibrations on the resistance of a cutting tool, as well as the effect of wear on surface roughness and accuracy of machined holes. The research has established a significant advantage of ultrasonic reaming in terms of surface roughness, the accuracy of holes, and the resistance of the cutting tool in workpieces made of difficult-to-process materials.
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