Improving the technological process of restoring the tillage machine working parts

Authors

DOI:

https://doi.org/10.15587/1729-4061.2020.198962

Keywords:

deformation, wear dynamics, vibration processing, surface wear resistance

Abstract

An analysis of the wear of machine parts has made it possible to establish characteristic requirements for the technological process of restoring worn surfaces. Experimental studies on hardening the working surfaces of plowshares have made it possible to determine processing parameters: oscillation frequency of the processing tool of 1,400 min-1, the oscillation amplitude of 0.5 mm and processing time of 20 s. Studies of the influence of conventional and vibration working on strength characteristics were carried out first on models and then on actual parts. New shares served as models. Experimental studies of these shares provided the identity of the nature of the cutting element wear. The sameness of the model and the actual part deformation degree was provided by the same conditions of the passage of the hardening processes.

The trustworthiness of the results of experimental studies was assessed in accordance with the law of theoretical distribution at a given value of confidence probability α=0.95. The studies have established that the share width of 116–117.5 mm which has a certain effect on the share efficiency corresponds to the highest probability of 0.39.

It has been experimentally established that the degree of hardening of the shares made of L-53 steel and surfaced with sormite and vibration hardened is 1.85 times greater than in conventional processing. The studies have made it possible to determine the nature of change in the share shape and thickness of the cutting edge and choose a more efficient process of its restoration by vibration hardening. A method of recovering shares by welding strips of 45 steel with automatic hard surfacing and vibration hardening was proposed

Author Biographies

Anatolii Dudnikov, Poltava State Agrarian Academy Skovorody str., 1/3, Poltava, Ukraine, 36003

PhD, Professor

Department of Technologies and Means of Mechanization of Agricultural Production

Oleksandr Gorbenko, Poltava State Agrarian Academy Skovorody str., 1/3, Poltava, Ukraine, 36003

PhD, Associate Professor

Department of Technologies and Means of Mechanization of Agricultural Production

Anton Kelemesh, Poltava State Agrarian Academy Skovorody str., 1/3, Poltava, Ukraine, 36003

PhD

Department of Technologies and Means of Mechanization of Agricultural Production

Olga Drozhchana, Poltava State Agrarian Academy Skovorody str., 1/3, Poltava, Ukraine, 36003

Senior Lecturer

Department of Life Safety

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Published

2020-04-30

How to Cite

Dudnikov, A., Gorbenko, O., Kelemesh, A., & Drozhchana, O. (2020). Improving the technological process of restoring the tillage machine working parts. Eastern-European Journal of Enterprise Technologies, 2(1 (104), 72–77. https://doi.org/10.15587/1729-4061.2020.198962

Issue

Vol. 2 No. 1 (104) (2020): Engineering technological systems

Section

Engineering technological systems

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Copyright (c) 2020 Anatolii Dudnikov, Oleksandr Gorbenko, Anton Kelemesh, Olga Drozhchana

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