Browsing by Author "de Cortázar, Maider García"
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Item Effect of high-density current electropulsing on corrosion cracking of titanium aluminide intermetallic(2021-07) Babutskyi, Anatolii; Chrysanthou, Andreas; Chyzhyk, Ganna; de Cortázar, Maider García; Egizabal, Pedro; Smelina, Marija; CIRMETAL; Tecnalia Research & InnovationThe effect of electropulsing on the corrosion cracking of titanium aluminide produced by self-propagating high-temperature synthesis has been investigated. The electropulsing treatment led to improved corrosion resistance in sodium fluoride solution and also eliminated corrosion cracking at the α2/γ interface during corrosion in a solution of nitric and hydrofluoric acids. This behavior was attributed to thermal and athermal effects resulting from electropulsing and leading to the interaction of conduction electrons with the defect structure. The effect of magnetic field accompanying electropusling on depinning of dislocations also has been discussed. Support for this is provided on the basis of X-ray diffraction analysis and microhardness testing.Item Innovative Tooling Solutions for Aircraft Assembly: A Case Study on the Development of Reconfigurable and Lightweight Fixtures(Springer Science and Business Media Deutschland GmbH, 2024) Laraudogoitia, Ignacio; Ojeda, Ibai; Renderos, Mario; Iriondo, Edurne; de Cortázar, Maider García; Girot, Franck; Manchado del Val, Cristina; Suffo Pino, Miguel; Moreno Sánchez, Daniel; Moreno Nieto, Daniel; Miralbes Buil, Ramón; CIRMETALThis paper presents a case study on the development of reconfigurable and lightweight fixtures for aircraft assembly, which are essential for modernizing and automating tooling fixtures in the aeronautical industry. Our study utilizes generative engineering and other design techniques to optimize performance and meet design objectives. Generative engineering combines parametric and algorithmic design with mathematical optimization, while generative design utilizes algorithmic methods to generate feasible designs based on performance goals, constraints, and design space. To determine the most appropriate optimization tools, we conducted a thorough study of available options and selected the most suitable ones based on available resources. Our newly developed fixtures are flexible and adaptable to various types of aircraft structures, including fuselages and wings, and meet crucial vibration requirements for aircraft assembly operations such as drilling and riveting. The new fixtures are also lightweight and easier to handle, contributing to a reduction in development costs and enhancing production efficiency. This contribution can help to enhance the competitiveness of the Basque aeronautical industry and position it as a key player in the global aviation market. The findings of this study demonstrate the benefits of incorporating generative engineering and novel design techniques into the development of innovative tooling solutions for aircraft assembly.Item Metal Matrix Composites(Wiley-VCH, 2013-04-12) de Cortázar, Maider García; Egizabal, Pedro; Barcena, Jorge; Le Petitcorps, Yann; CIRMETAL; Tecnalia Research & Innovation; EXTREMAT