Study of superficial textures on concave pieces of aluminium A2017
Tutor / directorRomanillos Delgado, Daniel
Document typeBachelor thesis
Rights accessOpen Access
The ball burnishing is a surface finishing operation without chip removal, which consists of passing a ball applying a certain force against a surface. It is a very versatile method that can perform in several geometries, in addition it can be automated in a CAM tool. Microscopically the surfaces show peaks and valleys, depending on the roughness these will be more or less pronounced. The process of burnishing with ball works in cold and by plastic deformation displacing the peaks inside the valleys leaving a smoother surface where it has passed and therefore reducing the roughness. If a vibration is applied comes in the phenomenon of electroplasticity, fact that reduces the effort necessary for plastic deformation. In this study, the capacity of the ball burnishing tool is analyzed on concave surfaces of different radius, furthermore parameters such as the force of application, the quality of the previous machining and the application or not of vibration will be changed. The roughness in each of the burnishing marks will be measured and the best procedure for the execution of the ball burnishing on a concave surface will be evaluated , in this case for A2017 aluminium pieces.
DegreeGRAU EN ENGINYERIA MECÀNICA (Pla 2009)