Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
EDM and Turning Machining Surface Preparation Influence on the Adhesion of Aluminum Thermally Sprayed Coatings
Submission Author:
Gabriel Medeiros Bozza , PR
Co-Authors:
Anderson Geraldo Marenda Pukasiewicz, Gabriel Medeiros Bozza, Marcelo Vasconcelos de Carvalho, Irapuan Santos, Arthur DERRIEN
Presenter: Anderson Geraldo Marenda Pukasiewicz
doi://10.26678/ABCM.COBEM2017.COB17-2335
Abstract
Thermal Spray is a process in which particles of molten (or semi-molten) metal are projected against the surface of a substrate, with the goal of enhancing its mechanical properties and its resistance against corrosion, also decreasing the wear rates on a surface. This work analyses the relation between the roughness of a surface before being subject to a thermal spraying process, and the adhesion of the coating obtained, giving us a better understanding on what happens between the surface and the coating, when subject to higher loads. We analysed the roughness on surfaces prepared by the EDM and Turning Machine methods. It was observed that if we increase the roughness of the substrate’s surface before spraying, we obtain a greater resistance against external tensions. The EDM method of preparation has shown to be more effective than the Turning Machined surfaces when requested to increase the surface’s roughness capabilities for coating adhesion.
Keywords
EDM, machining, Tensile Adhesion, Turning Machining, thermal spray
