The influence of reservoir lining material on the performance of processing of parts with a combined working media under the influence of oscillations
DOI:
https://doi.org/10.33216/1998-7927-2025-295-9-59-62Keywords:
combined working media, reservoir lining, abrasive coatings, circulation motion, metal removalAbstract
This work examines the effect of the lining material of a reservoir used for processing combined free working media under the action of oscillations on the overall productivity of the surface finishing process. The method is based on the transmission of pulses from the oscillating walls of the reservoir to the working media, which creates a stable circulating flow of the abrasive media, chemical solutions, and workpieces. The relative movement of the media elements determines the metal removal rate, and the presence of passive zones within the reservoir significantly affects the uniformity of the finish processing. While the parameters of the oscillation process have been thoroughly studied in the scientific literature, the influence of the abrasive properties of the reservoir walls remains understudied, despite the widespread use of rubber coatings in industrial equipment.
This paper presents the results of an experimental study conducted on equipment with a 25-liter reservoir. Two lining configurations were investigated: a traditional lining with a rubber surface and a surface lined with silicon carbide plates. Porcelain balls and a sodium bicarbonate solution were used as the working medium. Before the main machining operation, a cleaning step was performed using a continuous water supply. After the main operation, a repeat cleaning step was performed. After machining, the mass of metal removed from the samples was assessed in a series of ten parallel tests for each lining configuration.
The data obtained showed that changing the reservoir wall roughness did not significantly affect the circulation of the working media. The use of an abrasive silicon carbide lining significantly increased process productivity – the average metal removal rate increased by 40%. The possibility of intensifying oscillating machining by using wall materials with abrasive properties without compromising the stability of the working media was experimentally confirmed. The study demonstrates the potential of using abrasive coatings to improve the machining efficiency in equipment designed for finishing with abrasive tools without a rigid kinematic connection.
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