Actual Problems in Machine Building 2017 Vol. 4 No. 4

Актуальные проблемы в машиностроении . Том 4. № 4. 2017 Инновационные технологии в машиностроении ____________________________________________________________________ 31 ULTRASONIC PROCESSING OF MATERIALS OF LOW HARDNESS Samul A.G., Master’s Degree Student, e-mail: artem-samul@mail.ru Gileta V.P., Ph.D. (Engineering), Associate Professor, e-mail: gileta.viktor@yandex.ru Novosibirsk State Technical University, 20 Prospect K. Marksa, Novosibirsk, 630073, Russian Federation Abstract This paper presents the results of sample processing of steel 45 (HB 170) in the green state when applied to the warp of ultrasonic frequency for normal and tangential. Studies have shown that under normal processing scheme does not allow to obtain high quality of the surface layer in the processing of metals and alloys, low hardness. Use of the scheme with the introduction of ultrasonic tangentially excludes intensive flow of material in the contact zone of interaction and provides a significant reduction in the surface roughness, and also eliminates significant development of plastic deformation, which leads to the formation of flow waves. Parameters of technological impact at this circuit can control the quality of the surface layer, both geometric and physical- mechanical characteristics. Keywords surface-plastic deformation, ultrasonic treatment, the surface roughness, the input circuit oscillations