IMPROVEMENT OF TECHNOLOGICAL PROCESSES FOR MANUFACTURING PARTS OF AGRICULTURAL MACHINERY

Abstract

The article presents a comprehensive analysis of technological processes in the manufacturing of parts for agricultural machinery, which significantly affect the reliability, stability, and service life of machines used in agro-industrial production. Particular attention is given to the study of requirements for the geometric parameters and physical and mechanical properties of structural materials, as these characteristics directly determine assembly precision, wear resistance, robustness, and durability of machinery components. Key parameters ensuring proper quality of parts are considered, such as tensile strength, resilient modulus, hardness, ductility, wear resistance, and corrosion resistance. Modern heat treatment methods are analyzed, including hardening, annealing, normalization, and tempering, as well as their influence on the internal structure of the metal and improvement of mechanical properties. Additionally, methods of steel alloying and chemical surface modification – such as carburizing, chromium plating, and the addition of alloying elements (manganese, boron, silicon) – are explored, as they enhance the resistance of parts to external loads and aggressive environments. A comparative analysis of different heat treatment regimens for steel grade L65 is provided using statistical methods, allowing the identification of optimal technological parameters.

The study concludes that a comprehensive approach to the design and production of agricultural machinery parts – including the choice of manufacturing accuracy, treatment regimens, and material composition – can significantly increase the reliability and efficiency of machines under real operating conditions.