The influence of vibration lapping parameters of flat surfaces on their roughness

Keywords

vibration excitation, vibratory finishing machine, machining time, lapping intensity, surface roughness, surface finish class.

Cite as

Trush V. S., Korendiy V. М., Kachur O. Yu., Zakharov V. M., Trush K. V., and Kravchyshyn T. M. The influence of vibration lapping parameters of flat surfaces on their roughness. Physicochemical Mechanics of Materials. 2024. 60(6), 074-080.

https://doi.org/10.15407/pcmm2024.06.074

Abstract

The design and operational characteristics of a vibratory finishing machine with an electromagnetic drive is considered. The influence of the amplitude and frequency of the vibration excitation, as well as the grain size of the paste and the duration of the lapping process, on the roughness of flat surfaces of parts (flanges) made of Steel 20 was studied. The roughness of the machined surfaces inversely depends on the amplitude and frequency of oscillations and the time of the machining process. At the same time, the intensity of lapping decreases nonlinearly with increasing machining time, while an increase in the amplitude and frequency of the vibration excitation con­tributes to the intensification of the lapping process in an almost linear manner. Reducing the roughness and obtaining higher finish classes of the machined surface is ensured by using lapping pastes of smaller grain sizes. In general, the design of the vibratory finishing machine discussed in this article, used for lapping flat surfaces of parts (flanges) made of Steel 20, allows achieving a minimum roughness within 0.1–0.2 μm.

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