Browsing by Keyword "Inconel 718"
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Item Characterization of Inconel 718® superalloy fabricated by wire Arc Additive Manufacturing: effect on mechanical properties and machinability: effect on mechanical properties and machinability(2021-09) Alonso, Unai; Veiga, Fernando; Suárez, Alfredo; Gil Del Val, Alain; Tecnalia Research & Innovation; FABRIC_INTELWire and Arc Additive Manufacturing has the potential to become an appropriate technique to produce large complex-shaped metallic parts. However, a post-processing machining operation is necessary to reach the final geometry. In this work, Inconel 718 walls were manufactured in a monitored environment and their microstructure and mechanical properties were characterised. Then, slot milling operations were performed to investigate the influence of cutting speed and machining direction. The conclusions drawn from this article can be used as a guide for a correct definition of strategies and milling parameters. It was observed that at higher cutting speeds a better surface quality and lower torques are obtained. Moreover, the main novelty of this work is that is shows the influence of the anisotropy of WAAM-Inconel 718 on its machinability. Milling along the torch's travel direction offers better dimensional tolerance values with lower cutting torques, being more favourable than machining in the building direction.Item More robust processes and more added value for foundries based on inverse modelling and tailor-made software tools(World Foundry Organization, 2014) Meléndez, A.; Anglada, E.; Maestro, L.; Domínguez, I.; Tecnalia Research & Innovation; CIRMETALWith this work the authors want to show how is possible to approach improved simulations to the results of the user's plants giving a good solution for the increasing needs of accuracy. In this sense, the authors want to present an innovative experience concerning to a recently finished R&D project, which involved the development of two solutions using and complementing a commercial simulation software. The first of them is an improvement of the conventional simulations based on the use of the inverse modelling and the second one consists of a new 'ad hoc' tool developed especially for the customer. Once the project was concluded, as planned, the 'new current' simulations resulted well correlated with the plant. The casting process involved in the project is the investment casting process or lost wax casting process.