Mathematical simulation of motion of working medium at finishing–grinding treatment in the oscillating reservoir

Abstract

The results of mathematical simulation have been carried out for the pattern of working medium motion providing the technological process of finishing-grinding treatment in an oscillating reservoir. With use of physics laws, it is ascertained and grounded that the flow of granules at the plane wall of reservoir is travelling oppositely to the source of vibrations, whereas the granules are drifting on the cycloidtrochoid trajectories from the wall of reservoir, where the looped displacement is maximal, to the center of reservoir in which the shift of granules is reduced to minimum because of damping and dissipation effect. The received theoretical regulations have a fundamental nature and can be used at the account of technological parameters of designed vibration machines.

Substantiation of parameters for the technological process of restoring machine parts by the method of plastic deformation

“…Several researchers [5,6] note that the use of efficient technologies in the manufacture and restoration of parts contributes to the enhancement of fatigue strength and reduces initial roughness of a material. This is due to the presence in a material's surface layer of residual stresses of compression.…”

Research of wear resistance of bronze bushings during plastic vibration deformation

“…According to the author [6], application of vibration technologies contributes to resource saving. The authors of [7,8] also indicate a change in physicomechanical properties of the processed material and the intensifying effect of vibrations. However, there is a lack of data on certain types of parts.…”

“…The application of damping materials such as coatings on structural steel rationally combines the mechanical strength of the base and the damping capacity of the coating. There exist metal antifriction plasma coatings [4] as well as coatings of polymeric materials and composites [7] that are applied to steel to reduce vibrations by means of electroplating [16].…”

“…Coating materials include powders of different compositions -metallic [4,7], ceramic [8], nanostructured [9,10], and plated [11]. The damping capacity of materials can be characterized by means of the parameters of their internal friction (IF) [2,7,12].…”

К Вопросу Исследования Процесса Съема Металла При Вибрационной Обработке

“…Как известно из [1][2][3], процесс вибрационной обработки является многофакторным, его эффективность определяется более чем пятьюдесятью факторами. На сегодняшний день наименее изученным из них является форма применяемого инструмента -абразивной гранулы.…”