The causes of wear of the working bodies of soil cultivating units are analyzed. The main culling parameters are presented, due to which the working bodies lose their performance. The analysis of factors affecting the degree of wear of working bodies is carried out. Theoretical recommendations are proposed for the creation of an equal-strength tillage unit, the working bodies of which wear out with equal intensity.
The necessity of developing a mathematical model of the calculation and theoretical forecasting of the resource of the working body of the tillage aggregate is substantiated. The formula as a mathematical model is proposed. The results of calculations using this formula made it possible to evaluate several options for hardening the processing of samples and establish preferable ones. These options were samples hardened by boration and surfacing of metal powders in a liquid coolant. The proposed formula allows predicting the value of the resource of the working bodies of tillage and sowing units during their hardening, restoration and manufacturing process.
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