Influence of tillage tools cutting edge wear over technical and economic indicators.

The geometry of the cutting edge or of the surface contour is of great importance in minimizing the energy required for the mechanical processing operations. The vast majority of the research conducted so far in the soil processing field focuses on macro geometry of the tools without taking into account the geometry of the cutting edge. This paper presents the results of experimental research regarding the influence of the modification by wear of the constructive parameters of the cutting edge corresponding to the tillage tool on the economic indicators in the working process. Thus was established a mathematical model that highlights the correlation between the processed surface and the linear wear of tools, with which the average area that a tool can process until it reaches a wear limit value, can be determined.