Aplicação da manufatura aditiva na produção de ferramentais

Abstract

Tooling in aviation is extremely important for the quality and competitiveness of the product, since they are responsible for guaranteeing its characteristics provided with repeatability and precision. The main objective was to apply the additive manufacturing process in a small sample of forming tools, in order to obtain lead time reduction and manufacturing cost. Through the 3D FDM printing technology, which uses the deposition of molten thermoplastics layer by layer to form the part, it is possible to produce parts of extremely complex geometries, with less need for manufacturing processes, unlike conventional machining methods where you have different steps on different equipment, such as turning and milling operations. The tooling used in the application of additive manufacturing had the manufacturing times, total mass and costs provided by the manufacturer, these are obtained from the data that the printing equipment itself provides, and then were compared to the data of the same tools manufactured conventionally. No tool chosen with larger volumetric dimensions, the cost and manufacturing time obtained were, respectively, 30% and 119.7% greater than a machined one, while no tool of smaller volume, there was a reduction of 53.2% in cost and 38.9% in manufacturing time, while both had a reduction of, respectively, 64.3% and 58.4% in mass. The negative result in the first tooling is exclusively related to the volume of material necessary for the deposition and manufacture of the part, given the high cost of the material, which proved to be positive in the tooling with the smaller volume needed, but the gains in ergonomics and safety of the work obtained by reducing the mass are positive in both cases, thanks to the density of the thermoplastic.