Year: 2019
Type: conference-paper
Abstract: Restoration of the working condition by replacing parts purchased from an authorized dealer makes repair very expensive due to the manufacturer's monopoly.The increase in the maintenance costs is directly proportional to the cost of equipment and, for some tractors, can amount to several hundred thousand rubles.An analysis of the cost of repairing foreign agricultural equipment shows, on average, a double reassessment of the cost of spare parts in the overall structure of the cost of restoration.The article is devoted to development and justification of the economic feasibility of the technology of restoring failed aluminum radiators of the John Deere tractor.A distinctive feature of the proposed technology is the use of gas-dynamic spraying, which ensures the restoration of the tightness of the radiator, made of thin-walled aluminum parts, and having a form that is difficult to perform by traditional technological operations.As a result of the experimental studies, optimal process parameters were determined.The installation angle of the nozzle installation for gas-dynamic spraying and the distance from the nozzle to the sprayed surface were determined, providing, along with acceptable mechanical properties of the re-applied coating, sufficient performance.Thus, the study found that the use of a supersonic sputtering device to restore the aluminum radiator RE226366 of the JOHN DEERE 7830 tractor makes it possible to fully restore the performance of the part with high profitability and payback period of additional capital investments of 0.33 years.Considering that the manufacturing technology of radiators for JOHN DEERE tractors is the same, the proposed restoration method may cover the entire volume of these and similar parts.
Institution: Belgorod State Agricultural University
Language: English
Subfield: Mechanical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2947573288