Wear Resistance and Performance Improvement of Disc Plough Working Bodies Under Various Soil Conditions
Abstract
This study investigates the wear mechanisms affecting disc plough working bodies and key factors influencing wear intensity under various soil conditions. Field tests were conducted in sandy, stony, and loamy soils in the Tashkent region to evaluate the wear performance of discs made from boron steel, high-carbon steel, and mild steel. Results showed that boron steel discs had the highest wear resistance, with an average wear rate of 0.9 mm per 100 hectares, while high-carbon steel and mild steel discs had rates of 1.4 mm and 1.7 mm per 100 hectares, respectively. Increased operating speed and tillage depth led to higher wear rates. Carbide-based protective coatings reduced wear by 20–30%, and plasma-sprayed coatings extended disc life by 1.5 times. The use of boron steel and coated discs increased service life by 1.5 to 1.8 times and reduced maintenance costs by 30–40%. The results align with studies from China, the United States, Germany, and India. These findings offer practical insights for enhancing the durability and cost-efficiency of soil-engaging tools in agricultural machinery.