TECNOFAB - Grup de Recerca en Tecnologies de Fabricació

 

El grup de recerca en Tecnologies de Fabricació té activitat de recerca en tres branques principals: la fabricació additiva, els processos de fabricació i la fabricació integrada per ordinador. Pel que fa a la fabricació additiva, s'està treballant principalment en la tecnologia FDM (Deposició per Modelatge Fos), tant per a impressió de plàstics (PLA) com de ceràmiques (zircònia), amb una variant del procés en la qual el material se subministra a la màquina de forma discontínua. S'està estudiant tant les dimensions com les toleràncies geomètriques, l'acabat superficial i la resistència mecànica de les provetes. En l'àrea dels processos de fabricació, s'estudia l'acabat superficial obtingut mitjançant diferents processos com el fresatge, el brunyiment amb pedra abrasiva o honing, el brunyiment amb bola, l'electroerosió o el conformat de xapa. Pel que fa a la fabricació integrada per ordinador, s'està treballant en el camp dels robots autònoms i dels robots simuladors del moviment humà.

El objectivo principal del Grupo de Investigación en Tecnologías de Fabricación es hacer investigación aplicada en las diferentes Tecnologias de Fabricación, en cuanto a los procesos en si, a las metodologias, a los sistemas asistidos por ordenador y a la integración de diferentes tecnologias.

The main objective of the Manufacturing Technologies Research Group is to undertake applied research in the diverse manufacturing technologies, concerning the processes itself, the metodologies, the computer assisted systems and the integration of different technologies.

The main objective of the Manufacturing Technologies Research Group is to undertake applied research in the diverse manufacturing technologies, concerning the processes itself, the metodologies, the computer assisted systems and the integration of different technologies.

Recent Submissions

  • Hardening effect and fatigue behavior enhancement through ball burnishing on AISI 1038 

    Travieso Rodriguez, Jose Antonio; Jerez Mesa, Ramón; Gómez Gras, Giovanni; Llumà Fuentes, Jordi; Casadesús Farràs, Oriol; Madueño Guerrero, Manel (Elsevier, 2019-09-30)
    Article
    Restricted access - publisher's policy
    The objective of this paper is to present a comprehensive study of the effects of ball burnishing on the low cycle fatigue endurance of cylindrical specimens subjected to alternative bending stress, by constructing fatigue ...

  • An ultra-fast annealing treatment by electropulsing during pure copper wire drawing 

    González Rojas, Hernan Alberto; Sánchez Egea, Antonio José; Hameed, Saqib; Bolmaro, Raúl (Multidisciplinary Digital Publishing Institute (MDPI), 2019-11-23)
    Article
    Open Access
    The influence of electropulses in situ on the drawing process of copper wires was investigated with the aim of avoiding time consuming annealing thermal treatments. It was found that with the application of electropulses, ...

  • Manufacturing and application of raceway ponds for wastewater treatment 

    Nasr Esfahani, Kourosh; Zandi, Mohammad Damous; Travieso Rodriguez, Jose Antonio; Graells Sobré, Moisès; Pérez Moya, Montserrat (2019)
    Conference lecture
    Open Access

  • 3D printed lab-scale raceway ponds reactors applied to photo-Fenton processes 

    Nasr Esfahani, Kourosh; Zandi, Mohammad Damous; Travieso Rodriguez, Jose Antonio; Graells Sobré, Moisès; Pérez Moya, Montserrat (2019)
    Conference lecture
    Open Access
    In this work, two different printable materials, PLA (polylactic acid) and Timberfill were evaluated in terms of chemical resistance to photo-Fenton reactants and viability for conducting the assays in raceway pond reactors ...

  • Virtual human hand: grasps and fingertip deformation 

    Peña Pitarch, Esteve; Al Omar Mesnaoui, Anas; Alcelay Larrión, José Ignacio; Vives i Costa, Jordi (Springer, 2019-07-24)
    Part of book or chapter of book
    Restricted access - publisher's policy
    The objective of this paper is to simulate the human hand when grasping an object, considering the angles of the finger joints and the fingertip deformation. To study the grasp of an object used in activities of daily life ...

  • Effect of grain size and density of abrasive on surface roughness, material removal rate and acoustic emission signal in rough honing processes 

    Buj Corral, Irene; Álvarez Flórez, Jesús Andrés; Domínguez Fernandez, Alejandro (Multidisciplinary Digital Publishing Institute (MDPI), 2019-08-01)
    Article
    Open Access
    Honing processes provide a special cross-hatch pattern to the internal surface of cylinders that favors oil flow. However, along honing operation the abrasive grains wear out and lose their ability to cut material. The ...

  • Laser surface texturing of alumina/zirconia composite ceramics for potential use in hip joint prosthesis 

    Baino, Francesco; Montealegre, Maria Ángeles; Minguella Canela, Joaquim; Vitale-Brovarone, Chiara (Multidisciplinary Digital Publishing Institute (MDPI), 2019-06-06)
    Article
    Open Access
    The use of metal shell to fix an acetabular cup to bone in hip joint prosthesis carries some limitations, including restrictions in prosthetic femur ball diameter and in patient’s range of motion. These drawbacks could be ...

  • Low temperature processing of solution-derived ceria deposits on flat surfaces of 3D-printed polyamide 

    Morales Planas, Sergio; Calleja, Albert; Vlad, V.R.; Oró-Solé, J.; Minguella Canela, Joaquim; Farjas Silva, Jordi (2019-06-01)
    Article
    Restricted access - publisher's policy
    Doped ceria deposits have been prepared on 3D-printed polyamide-12 components starting from inkjet-compatible solutions in an attempt to functionalize the surface of the plastic part, followed by a low temperature decomposition ...

  • Wear and MnS layer adhesion in uncoated cutting tools when dry and wet turning free-cutting steels 

    Martinez Krahmer, Daniel; Hameed, Saqib; Sánchez Egea, Antonio José; Pérez, Daniela; Canales, Javier; López de la Calle, Luís Norberto (Multidisciplinary Digital Publishing Institute (MDPI), 2019-05-08)
    Article
    Open Access
    Free-cutting steels are developed to produce large quantities of parts with low mechanical behavior, mainly for automotive sector. These alloys contain phosphorous, lead, sulfur, and manganese that help to improve the ...

  • On the microstructure effects when using electropulsing versus furnace treatments while drawing inox 308L 

    Sánchez Egea, Antonio José; Jorba Peiró, Jordi; Signorelli, Javier Walter; González Rojas, Hernan Alberto; Celentano, Diego Javier (Elsevier, 2019-05-07)
    Article
    Restricted access - publisher's policy
    In the present work, microstructure and texture evolution in a commercial 308L stainless steel wire is assessed by comparing several electropulsing configurations and thermal annealing treatments performed during and after ...

  • Joining metrics enhancement when combining FSW and ball-burnishing in a 2050 aluminium alloy 

    Sánchez Egea, Antonio José; Rodriguez, Adrian; Celentano, Diego Javier; Calleja, Amaia; López de la Calle, Luís Norberto (Elsevier, 2019-06-15)
    Article
    Open Access
    This report describes the effect of the ball-burnishing process on the mechanical properties of 2050 aluminium alloy that was previously friction stir welded. This process is a fast, environmentally-friendly and cost-effective ...

  • Optimal machining strategy selection in ball-end milling of hardened steels for injection molds 

    Buj Corral, Irene; Ortiz Marzo, José Antonio; Costa Herrero, Lluís; Vivancos Calvet, Joan; Luis Pérez, Carmelo Javier (Multidisciplinary Digital Publishing Institute (MDPI), 2019-03-01)
    Article
    Open Access
    In the present study, the groups of cutting conditions that minimize surface roughness and its variability are determined, in ball-end milling operations. Design of experiments is used to define experimental tests performed. ...

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