Estudio experimental para determinar los parámetros óptimos de mecanizado en aleaciones de aluminio que generen el mejor acabado superficial en partes y piezas automotrices.

Abstract

The purpose of the present degree work was to determine the optimal parameters machined in the manufacture of automotive parts and parts. The material used is an aluminium alloy with a content of 5% by weight of copper, which was obtained by melting in a fixed crucible furnace. An experiments design was developed for the experimentation where factors such as the parameters of cutting, advance and the tool used during the displacement operations of an axis are controlled. The resulting roughness defines the response variable on the surface at the end of each experiment, and each value is tabulated for its subsequent treatment and statistical analysis in order to determine the optimum machining parameters in order to obtain the least possible roughness, thus improving the turning processes in aluminium-copper alloys. An automotive element was machined with the results obtained to validate the experiment. Therefore, it concludes that the feed and the cutting fluid are the most influential factors in the quality of the surface finish and that is why it is recommended to machine this material with a feed of 1 mm at 600 rev/min and use a water-emulsified refrigerant because it is the most suitable at high cutting speeds.