Proposition of abrasion resistance determining method of materials used for production of plowshares

Abstract

The development of the agricultural industry is aimed, among others, at a significant increase in the field area being processed by individual farmers. As the farmland that needs to be processed is getting bigger and the time to perform the work has not changed, it is necessary to constantly increase the efficiency of agricultural machinery. This fact requires the use of innovative solutions and materials that will meet the task given to them. One of the hardest working machines are plows. Their main parts are introduced to dynamic, complex states of stress. Among many of its components, there is the material shear stress caused by friction of the share against the soil. The material used for the production of this part (usually one of the steel grades) must, inter alia, have good abrasion resistance. This work proposes a quick and relatively cheap method of checking/comparing material/materials in terms of their resistance to abrasive wear. For this purpose, the so-called ball-cratering method was used, which consists measuring micro-wear in the sample-ball contact. By using this method, it is also possible to test modified surfaces, e.g., coated or toughened. As the name suggests, it is a very precise method, so it is necessary to correctly select the input parameters. To meet this requirement, the Taguchi process optimization method was used. By using the developed method, good accuracy and repeatability of results could be obtained, which is extremely important in research processes.

Study of the wear resistance of hardened harrows of agricultural machines

“…This disadvantage can manifest itself in the form of chips and peeling from the substrate [11]. At the same time, there are many methods to increase the strength and stability of such layers [15][16][17][18]. One of them is heating by high frequency currents (HDTV) during the formation of a diffusion boron layer [14,15].…”