The paper presents technological aspects of surface texture manufacturing using electro-discharge and laser methods. The mentioned textures will be applied to the working surfaces of sliding friction pairs, such as thrust sliding bearings and mechanical face seals of pumps. The presented research discusses the relationships between process parameters and the geometry of a single texture element.The condition of the sliding pair surface has a significant impact on the course of friction and wear processes. In many cases, this condition determines the value of losses and indirectly influences global machine performance indicators, such as overall efficiency or, for example, in the case of internal combustion engines, the emission of toxic exhaust components. From this point of view, shaping surface topography becomes of great importance.
Modern technologies enabling local interaction create increasingly broad possibilities for precisely deciding on the shape and size of objects forming the micro- and macro-geometry of a surface. Texturing technology, which consists of producing non-homogeneous surfaces using various techniques, is currently becoming a frequently used method for improving the lubrication conditions of friction nodes [1÷3]. It should be noted here that currently, texturing that shapes geometry is used, while texturing that shapes the physical properties of the surface is perceived as an untapped opportunity [4]. In some applications, such significant texture effectiveness has been achieved that one can speak of preparing for standardization [5]. (…)
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Source: Logistyka Magazine