Texturizado por rectificado para la mejora de propiedades de fricción en componentes industriales

Abstract

The economic and environmental cost of friction in machinery  and transport is significantly remarkable being the machine  tool one of the most affected. In this sector, the movements are  totally affected by the friction originated in the displacements  between the guideways and the carriages, which results in  terms of precision, energy consumption and component wear.  In this line, texturing has proved to be a useful tool to reduce  friction. Texturing techniques include frosting and scraping,  both manual and costly processes in which the final finish of  the workpiece depends on the operator. Other techniques such  as laser texturing represent an effective and precise procedure  which is at the same time expensive and not applicable in  large workpieces. One of the main challenges is to develop  techniques capable of producing these textures in a repetitive  and economically viable way. In this work, a new assisted  dressing technique that allows generating different textures  by grinding, controlling the geometry and distribution of these,  is presented. This technique allows to create textures in large  workpieces, such as the guides of the machine tools and to do  it in a repetitive way and in the same machine in which the  guide has been ground previously, which entails a reduction  in time and costs. This technique has been validated through  tribological tests obtaining lower friction coefficients than with  manual techniques.