Browsing by Subject "Additive manufacturing"

Now showing items 1-20 of 38

    • 3D printed microstructured Au/TiO2 catalyst for hydrogen photoproduction 

      Elkoro Ugarteburu, Ander; Soler Turu, Lluís; Llorca Piqué, Jordi; Casanova Hormaechea, Ignasi (Elsevier, 2019-06-25)
      Article
      Restricted access - publisher's policy
      We successfully 3D printed Au/TiO2 monoliths for photogenerating hydrogen from water/ethanol gaseous mixtures under dynamic conditions. Monolith designs were printed by additive superposition of microfilaments of titania-based ...

    • 3D printed soft surgical planning prototype for a biliary tract rhabdomyosarcoma 

      Tejo Otero, Aitor; Lustig, Pamela; Fenollosa i Artés, Felip; Valls, Arnau; Krauel, Lucas; Buj Corral, Irene (Elsevier, 2020-05-11)
      Article
      Restricted access - publisher's policy
      Biliary tract rhabdomyosarcoma is a soft tissue malignant musculoskeletal tumor which is located in the biliary tract. Although this tumor represents less than 1% of the total amount of childhood cancers, when localized, ...

    • 3D printing in medicine for preoperative surgical planning: a review 

      Tejo Otero, Aitor; Buj Corral, Irene; Fenollosa i Artés, Felip (2020-02-01)
      Article
      Open Access
      The aim of this paper is to review the recent evolution of additive manufacturing (AM) within the medical field of preoperative surgical planning. The discussion begins with an overview of the different techniques, pointing ...

    • A scalable parallel finite element framework for growing geometries: application to metal additive manufacturing 

      Miranda Neiva, Eric; Badia, Santiago; Martín Huertas, Alberto Francisco; Chiumenti, Michele (John Wiley & sons, 2019-09)
      Article
      Open Access
      This work introduces an innovative parallel, fully-distributed finite element framework for growing geometries and its application to metal additive manufacturing. It is well-known that virtual part design and qualification ...

    • A submillimeter wave parabolic reflector by additive manufacturing 

      Romeu Robert, Jordi; Aguasca Solé, Alberto; Blanch Boris, Sebastián; O'Callaghan Castellà, Juan Manuel; Jofre Roca, Lluís; Buitrago Ventura, Santiago (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Conference report
      Restricted access - publisher's policy
      The manufacturing of prototype of an offset parabolic reflector to operate at 120 GHz is presented. The paper describes the different metallization options to achieve a good performance.

    • Ammonia decomposition over 3D-printed CeO2 structures loaded with Ni 

      Lucentini, Ilaria; Serrano Carreño, M. Isabel; Soler Turu, Lluís; Jiménez Divins, Nuria; Llorca Piqué, Jordi (2020-02-05)
      Article
      Restricted access - publisher's policy
      Binder-free ceria pastes have been formulated and used to prepare ceria structures with a woodpile arrangement of microchannels through 3D printing. After loading them with nickel, these catalytic structures have been ...

    • An adaptive Finite Element strategy for the numerical simulation of additive manufacturing processes 

      Baiges Aznar, Joan; Chiumenti, Michele; Filho, Carlos Augusto Moreira; Cervera Ruiz, Miguel; Codina, Ramon (Elsevier, 2021-01)
      Article
      Restricted access - publisher's policy
      In this work an adaptive Finite Element strategy to deal with the numerical simulation of Additive Manufacturing (AM) processes is presented. The Selective Laser Melting (SLM) is chosen as the reference technology because ...

    • Assessment of the potential economic impact of the use of AM technologies in the cost levels of manufacturing and stocking of spare part products 

      Minguella Canela, Joaquim; Morales Planas, Sergio; Gomà Ayats, Joan Ramon; Santos López, M. Antonia de los (Multidisciplinary Digital Publishing Institute (MDPI), 2018-08-14)
      Article
      Open Access
      Additive manufacturing (AM) technologies are appropriate manufacturing technologies to produce low rotation products of high added value. Products in the spare parts business usually have discontinuous demand levels of ...

    • Biological responses of ceramic bone spacers produced by green processing of additively manufactured thin meshes 

      Minguella Canela, Joaquim; Calero, José Antonio; Korkusuz, Feza; Korkusuz, Petek; Kankiliç, Berna; Bilgiç, Elif; Santos López, M. Antonia de los (Multidisciplinary Digital Publishing Institute (MDPI), 2020-05-30)
      Article
      Open Access
      Bone spacers are exclusively used for replacing the tissue after trauma and/or diseases. Ceramic materials bring positive opportunities to enhance greater osteointegration and performance of implants, yet processing of ...

    • Compositionally-tailored steel-based materials manufactured by electron beam melting using blended pre-alloyed powders 

      Koptyug, Andrey; Popov Jr., Vladimir V.; Botero Vega, Carlos Alberto; Jiménez Piqué, Emilio (2020-01-13)
      Article
      Restricted access - publisher's policy
      The paper presents the prospects of additive manufacturing (AM) in metal, using the powder bed fusion (PBF) method Electron Beam Melting (EBM) in fabrication specific steel-based alloys for different applications. The ...

    • DemoCell d’impressió 3D 

      Urpí López, Jordi (Universitat Politècnica de Catalunya, 2021-02-04)
      Bachelor thesis
      Restricted access - author's decision
      En aquest projecte s’ha desenvolupat una aplicació d’impressió 3D mitjançant un braç robòtic. Es tracta d’una aplicació totalment automatitzada i preparada per imprimir. A partir de la realització d’aquest projecte, es ...

    • Development of AM technologies for metals in the sector of medical implants 

      Buj Corral, Irene; Tejo Otero, Aitor; Fenollosa i Artés, Felip (Multidisciplinary Digital Publishing Institute (MDPI), 2020-05-28)
      Article
      Open Access
      Additive manufacturing (AM) processes have undergone significant progress in recent years, having been implemented in sectors as diverse as automotive, aerospace, electrical component manufacturing, etc. In the medical ...

    • Digital manufacturing: what are we able to print? 

      Muguruza Blanco, Asier; Minguella Canela, Joaquim (David Publishing Co., 2017-07-31)
      Article
      Open Access
      In a rational exercise, in the present paper it is extrapolated how the development of ICTs (information and communication technologies) and the incipient technological development of additive manufacturing has the potential ...

    • Effects of building condition on the tensile property of FFF Timberfill parts 

      Zandi, Mohammad Damous; Jerez Mesa, Ramón; Travieso Rodriguez, Jose Antonio; Llumà Fuentes, Jordi (2018)
      Conference report
      Restricted access - publisher's policy
      This paper presents a study of mechanical properties of Fused Deposition Modeling (FDM) rapid prototyping processed material Timberfill. In this study, four important process parameters such as layer thickness, density, ...

    • Estudio de diseño de una reductora con impresora 3D 

      Luna Avalos, Héctor Gustavo (Universitat Politècnica de Catalunya, 2020-06-30)
      Bachelor thesis
      Restricted access - author's decision
      El presente trabajo final de grado estudia el diseño y cálculo de un reductor de velocidad utilizando tecnología de fabricación aditiva, concretamente de impresión 3D, con el objetivo de implementarlo en una máquina. A ...

    • Estudio de la adaptación del proceso de soldadura MIG, a proceso de fabricación aditiva para obtención de piezas tridimensionales 

      Martín Sánchez, Gabriel (Universitat Politècnica de Catalunya, 2020-06-30)
      Bachelor thesis
      Open Access
      En este estudio se realiza una adaptación del proceso de soldadura por arco eléctrico TIG, del inglés Tungsten Inert Gas, para acomodarlo a una instalación de fabricación aditiva con el objetivo de producir piezas metálicas ...

    • Experimental analysis of manufacturing parameters’ effect on the flexural properties of wood-PLA composite parts built through FFF 

      Zandi, Mohammad Damous; Jerez Mesa, Ramón; Llumà Fuentes, Jordi; Roa Rovira, Joan Josep; Travieso Rodriguez, Jose Antonio (2020-01-02)
      Article
      Open Access
      This paper aims to determine the flexural stiffness and strength of a composite made of a polylactic acid reinforced with wood particles, named commercially as Timberfill, manufactured through fused filament fabrication ...

    • Fatigue behavior of PLA-wood composite manufactured by fused filament fabrication 

      Travieso Rodriguez, Jose Antonio; Zandi, Mohammad Damous; Jerez Mesa, Ramón; Llumà Fuentes, Jordi (Elsevier, 2020-07-08)
      Article
      Open Access
      In this paper, the fatigue behavior of a polylactic acid-based composite reinforced with wood (trademarked as Timberfill) processed through fused filament fabrication is analyzed through rotating bending fatigue tests. ...

    • Fatigue lifespan study of PLA parts obtained by additive manufacturing 

      Jerez Mesa, Ramón; Travieso Rodriguez, Jose Antonio; Llumà Fuentes, Jordi; Gómez Gras, Giovanni; Puig, Daniel (2017)
      Conference lecture
      Open Access
      Currently, additive manufacturing (AM) is not limited to prototype manufacturing, but is also used to generate parts with final applications. This paper considers this aspect of 3D printing, and aims to characterize fatigue ...

    • Foreseeing new multi-material FFF-Additive Manufacturing concepts meeting mimicking requirements with living tissues 

      Fenollosa i Artés, Felip; Gomà Ayats, Joan Ramon; Buj Corral, Irene; Tejo Otero, Aitor; Minguella Canela, Joaquim; Uceda Molera, Roger; Valls Esteve, Arnau; Ayats, Marta (2019)
      Article
      Open Access
      The development of additive manufacturing (AM) during the last years has revolutionized not only the industry, but also the medical sector. This alongside the necessity in our society and in medicine to enhance the quality ...